~shefty/rdma-dev.git
10 years agoMerge branch 'misc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Linus Torvalds [Sat, 7 Jan 2012 02:02:43 +0000 (18:02 -0800)]
Merge branch 'misc-3.3' of git://git./linux/kernel/git/aegl/linux

* 'misc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: pcibr: Use kmemdup rather than duplicating its implementation
  ia64: sn: Use kmemdup rather than duplicating its implementation
  ia64: tioca: Use kmemdup rather than duplicating its implementation
  [IA64] Merge overlapping reserved regions at boot

10 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Sat, 7 Jan 2012 01:59:33 +0000 (17:59 -0800)]
Merge branch 'for-next' of git://git./linux/kernel/git/gerg/m68knommu

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (56 commits)
  m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled
  m68k/Kconfig: Separate classic m68k and coldfire early
  m68k: add ColdFire with MMU enabled support to the m68k mem init code
  m68k: do not use m68k startup or interrupt code for ColdFire CPUs
  m68k: add ColdFire FPU support for the V4e ColdFire CPUs
  m68k: adjustments to stack frame for ColdFire with MMU enabled
  m68k: use non-MMU linker script for ColdFire MMU builds
  m68k: ColdFire with MMU enabled uses same clocking code as non-MMU
  m68k: add code to setup a ColdFire 54xx platform when MMU enabled
  m68k: use non-MMU entry.S code when compiling for ColdFire CPU
  m68k: create ColdFire MMU pgalloc code
  m68k: compile appropriate mm arch files for ColdFire MMU support
  m68k: ColdFire V4e MMU paging init code and miss handler
  m68k: use ColdFire MMU read/write bit flags when ioremapping
  m68k: modify cache push and clear code for ColdFire with MMU enable
  m68k: use tracehook_report_syscall_entry/exit for ColdFire MMU ptrace path
  m68k: ColdFire V4e MMU context support code
  m68k: MMU enabled ColdFire needs 8k ELF alignment
  m68k: set ColdFire MMU page size
  m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled
  ...

10 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Sat, 7 Jan 2012 01:58:22 +0000 (17:58 -0800)]
Merge branch 'next' of git://git./linux/kernel/git/benh/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits)
  powerpc: fix compile error with 85xx/p1010rdb.c
  powerpc: fix compile error with 85xx/p1023_rds.c
  powerpc/fsl: add MSI support for the Freescale hypervisor
  arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
  powerpc/fsl: Add support for Integrated Flash Controller
  powerpc/fsl: update compatiable on fsl 16550 uart nodes
  powerpc/85xx: fix PCI and localbus properties in p1022ds.dts
  powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
  powerpc/fsl: Update defconfigs to enable some standard FSL HW features
  powerpc: Add TBI PHY node to first MDIO bus
  sbc834x: put full compat string in board match check
  powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
  powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit
  offb: Fix setting of the pseudo-palette for >8bpp
  offb: Add palette hack for qemu "standard vga" framebuffer
  offb: Fix bug in calculating requested vram size
  powerpc/boot: Change the WARN to INFO for boot wrapper overlap message
  powerpc/44x: Fix build error on currituck platform
  powerpc/boot: Change the load address for the wrapper to fit the kernel
  powerpc/44x: Enable CRASH_DUMP for 440x
  ...

Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to
the additional sparse-checking code for cputime_t.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Linus Torvalds [Sat, 7 Jan 2012 01:22:09 +0000 (17:22 -0800)]
Merge git://git./linux/kernel/git/davem/net-next

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits)
  net: pack skb_shared_info more efficiently
  net_sched: red: split red_parms into parms and vars
  net_sched: sfq: extend limits
  cnic: Improve error recovery on bnx2x devices
  cnic: Re-init dev->stats_addr after chip reset
  net_sched: Bug in netem reordering
  bna: fix sparse warnings/errors
  bna: make ethtool_ops and strings const
  xgmac: cleanups
  net: make ethtool_ops const
  vmxnet3" make ethtool ops const
  xen-netback: make ops structs const
  virtio_net: Pass gfp flags when allocating rx buffers.
  ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call
  netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call
  igb: reset PHY after recovering from PHY power down
  igb: add basic runtime PM support
  igb: Add support for byte queue limits.
  e1000: cleanup CE4100 MDIO registers access
  e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove
  ...

10 years agoMerge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 23:02:37 +0000 (15:02 -0800)]
Merge branch 'x86-mce-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: add IRQ context simulation in module mce-inject
  x86, mce, therm_throt: Don't report power limit and package level thermal throttle events in mcelog
  x86, MCE: Drain mcelog buffer
  x86, mce: Add wrappers for registering on the decode chain

10 years agoMerge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 23:02:14 +0000 (15:02 -0800)]
Merge branch 'x86-microcode-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode, AMD: Update copyrights
  x86, microcode, AMD: Exit early on success
  x86, microcode, AMD: Simplify ucode verification
  x86, microcode, AMD: Add a reusable buffer
  x86, microcode, AMD: Add a vendor-specific exit function

10 years agoMerge branch 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 23:02:00 +0000 (15:02 -0800)]
Merge branch 'x86-rdrand-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  random: Use arch_get_random_int instead of cycle counter if avail

10 years agoMerge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 22:00:44 +0000 (14:00 -0800)]
Merge branch 'x86-cpu-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, centaur: Enable cx8 for VIA Eden too

10 years agoMerge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 22:00:12 +0000 (14:00 -0800)]
Merge branch 'x86-cleanups-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Use "do { } while(0)" for empty lock_cmos()/unlock_cmos() macros
  x86: Use "do { } while(0)" for empty flush_tlb_fix_spurious_fault() macro
  x86, CPU: Drop superfluous get_cpu_cap() prototype
  arch/x86/mm/pageattr.c: Quiet sparse noise; local functions should be static
  arch/x86/kernel/ptrace.c: Quiet sparse noise
  x86: Use kmemdup() in copy_thread(), rather than duplicating its implementation
  x86: Replace the EVT_TO_HPET_DEV() macro with an inline function

10 years agoMerge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 21:59:14 +0000 (13:59 -0800)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  x86: Fix atomic64_xxx_cx8() functions
  x86: Fix and improve cmpxchg_double{,_local}()
  x86_64, asm: Optimise fls(), ffs() and fls64()
  x86, bitops: Move fls64.h inside __KERNEL__
  x86: Fix and improve percpu_cmpxchg{8,16}b_double()
  x86: Report cpb and eff_freq_ro flags correctly
  x86/i386: Use less assembly in strlen(), speed things up a bit
  x86: Use the same node_distance for 32 and 64-bit
  x86: Fix rflags in FAKE_STACK_FRAME
  x86: Clean up and extend do_int3()
  x86: Call do_notify_resume() with interrupts enabled
  x86/div64: Add a micro-optimization shortcut if base is power of two
  x86-64: Cleanup some assembly entry points
  x86-64: Slightly shorten line system call entry and exit paths
  x86-64: Reduce amount of redundant code generated for invalidate_interruptNN
  x86-64: Slightly shorten int_ret_from_sys_call
  x86, efi: Convert efi_phys_get_time() args to physical addresses
  x86: Default to vsyscall=emulate
  x86-64: Set siginfo and context on vsyscall emulation faults
  x86: consolidate xchg and xadd macros
  ...

10 years agoMerge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 21:58:21 +0000 (13:58 -0800)]
Merge branch 'x86-apic-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Skip cpus with apic-ids >= 255 in !x2apic_mode
  x86, x2apic: Allow "nox2apic" to disable x2apic mode setup by BIOS
  x86, x2apic: Fallback to xapic when BIOS doesn't setup interrupt-remapping
  x86, acpi: Skip acpi x2apic entries if the x2apic feature is not present
  x86, apic: Add probe() for apic_flat
  x86: Simplify code by removing a !SMP #ifdefs from 'struct cpuinfo_x86'
  x86: Convert per-cpu counter icr_read_retry_count into a member of irq_stat
  x86: Add per-cpu stat counter for APIC ICR read tries
  pci, x86/io-apic: Allow PCI_IOAPIC to be user configurable on x86
  x86: Fix the !CONFIG_NUMA build of the new CPU ID fixup code support
  x86: Add NumaChip support
  x86: Add x86_init platform override to fix up NUMA core numbering
  x86: Make flat_init_apic_ldr() available

10 years agoMerge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 21:57:44 +0000 (13:57 -0800)]
Merge branch 'timers-core-for-linus' of git://git./linux/kernel/git/tip/tip

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, tsc: Skip TSC synchronization checks for tsc=reliable
  clocksource: Convert tcb_clksrc to use clocksource_register_hz/khz
  clocksource: cris: Convert to clocksource_register_khz
  clocksource: xtensa: Convert to clocksource_register_hz/khz
  clocksource: um: Convert to clocksource_register_hz/khz
  clocksource: parisc: Convert to clocksource_register_hz/khz
  clocksource: m86k: Convert to clocksource_register_hz/khz
  time: x86: Replace LATCH with PIT_LATCH in i8253 clocksource driver
  time: x86: Remove CLOCK_TICK_RATE from acpi_pm clocksource driver
  time: x86: Remove CLOCK_TICK_RATE from mach_timer.h
  time: x86: Remove CLOCK_TICK_RATE from tsc code
  time: Fix spelling mistakes in new comments
  time: fix bogus comment in timekeeping_get_ns_raw

10 years agoMerge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 16:33:28 +0000 (08:33 -0800)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/tip

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
  sched/tracing: Add a new tracepoint for sleeptime
  sched: Disable scheduler warnings during oopses
  sched: Fix cgroup movement of waking process
  sched: Fix cgroup movement of newly created process
  sched: Fix cgroup movement of forking process
  sched: Remove cfs bandwidth period check in tg_set_cfs_period()
  sched: Fix load-balance lock-breaking
  sched: Replace all_pinned with a generic flags field
  sched: Only queue remote wakeups when crossing cache boundaries
  sched: Add missing rcu_dereference() around ->real_parent usage
  [S390] fix cputime overflow in uptime_proc_show
  [S390] cputime: add sparse checking and cleanup
  sched: Mark parent and real_parent as __rcu
  sched, nohz: Fix missing RCU read lock
  sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer
  sched, nohz: Fix the idle cpu check in nohz_idle_balance
  sched: Use jump_labels for sched_feat
  sched/accounting: Fix parameter passing in task_group_account_field
  sched/accounting: Fix user/system tick double accounting
  sched/accounting: Re-use scheduler statistics for the root cgroup
  ...

Fix up conflicts in
 - arch/ia64/include/asm/cputime.h, include/asm-generic/cputime.h
usecs_to_cputime64() vs the sparse cleanups
 - kernel/sched/fair.c, kernel/time/tick-sched.c
scheduler changes in multiple branches

10 years agoMerge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 16:02:58 +0000 (08:02 -0800)]
Merge branch 'perf-core-for-linus' of git://git./linux/kernel/git/tip/tip

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (106 commits)
  perf kvm: Fix copy & paste error in description
  perf script: Kill script_spec__delete
  perf top: Fix a memory leak
  perf stat: Introduce get_ratio_color() helper
  perf session: Remove impossible condition check
  perf tools: Fix feature-bits rework fallout, remove unused variable
  perf script: Add generic perl handler to process events
  perf tools: Use for_each_set_bit() to iterate over feature flags
  perf tools: Unify handling of features when writing feature section
  perf report: Accept fifos as input file
  perf tools: Moving code in some files
  perf tools: Fix out-of-bound access to struct perf_session
  perf tools: Continue processing header on unknown features
  perf tools: Improve macros for struct feature_ops
  perf: builtin-record: Document and check that mmap_pages must be a power of two.
  perf: builtin-record: Provide advice if mmap'ing fails with EPERM.
  perf tools: Fix truncated annotation
  perf script: look up thread using tid instead of pid
  perf tools: Look up thread names for system wide profiling
  perf tools: Fix comm for processes with named threads
  ...

10 years agoMerge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Jan 2012 16:02:40 +0000 (08:02 -0800)]
Merge branch 'core-rcu-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
  cpu: Export cpu_up()
  rcu: Apply ACCESS_ONCE() to rcu_boost() return value
  Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
  docs: Additional LWN links to RCU API
  rcu: Augment rcu_batch_end tracing for idle and callback state
  rcu: Add rcutorture tests for srcu_read_lock_raw()
  rcu: Make rcutorture test for hotpluggability before offlining CPUs
  driver-core/cpu: Expose hotpluggability to the rest of the kernel
  rcu: Remove redundant rcu_cpu_stall_suppress declaration
  rcu: Adaptive dyntick-idle preparation
  rcu: Keep invoking callbacks if CPU otherwise idle
  rcu: Irq nesting is always 0 on rcu_enter_idle_common
  rcu: Don't check irq nesting from rcu idle entry/exit
  rcu: Permit dyntick-idle with callbacks pending
  rcu: Document same-context read-side constraints
  rcu: Identify dyntick-idle CPUs on first force_quiescent_state() pass
  rcu: Remove dynticks false positives and RCU failures
  rcu: Reduce latency of rcu_prepare_for_idle()
  rcu: Eliminate RCU_FAST_NO_HZ grace-period hang
  rcu: Avoid needlessly IPIing CPUs at GP end
  ...

10 years agoMerge branch 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 16:01:59 +0000 (08:01 -0800)]
Merge branch 'core-printk-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  printk, lockdep: Switch to tracked irq ops
  printk, lockdep: Remove superfluous preempt_disable()
  printk, lockdep: Disable lock debugging on zap_locks()

10 years agoMerge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 15:54:53 +0000 (07:54 -0800)]
Merge branch 'core-memblock-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  memblock: Reimplement memblock allocation using reverse free area iterator
  memblock: Kill early_node_map[]
  score: Use HAVE_MEMBLOCK_NODE_MAP
  s390: Use HAVE_MEMBLOCK_NODE_MAP
  mips: Use HAVE_MEMBLOCK_NODE_MAP
  ia64: Use HAVE_MEMBLOCK_NODE_MAP
  SuperH: Use HAVE_MEMBLOCK_NODE_MAP
  sparc: Use HAVE_MEMBLOCK_NODE_MAP
  powerpc: Use HAVE_MEMBLOCK_NODE_MAP
  memblock: Implement memblock_add_node()
  memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users
  memblock: Track total size of regions automatically
  powerpc: Cleanup memblock usage
  memblock: Reimplement memblock_enforce_memory_limit() using __memblock_remove()
  memblock: Make memblock functions handle overflowing range @size
  memblock: Reimplement __memblock_remove() using memblock_isolate_range()
  memblock: Separate out memblock_isolate_range() from memblock_set_node()
  memblock: Kill memblock_init()
  memblock: Kill sentinel entries at the end of static region arrays
  memblock: Add __memblock_dump_all()
  ...

10 years agoMerge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 6 Jan 2012 15:53:52 +0000 (07:53 -0800)]
Merge branch 'core-locking-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lockdep/waitqueues: Add better annotation
  lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging
  lockdep: Print lock name in lockdep_init_error()
  init/main.c: Execute lockdep_init() as early as possible
  lockdep, kmemcheck: Annotate ->lock in lockdep_init_map()
  lockdep, rtmutex, bug: Show taint flags on error
  lockdep, bug: Exclude TAINT_FIRMWARE_WORKAROUND from disabling lockdep
  lockdep: Always try to set ->class_cache in register_lock_class() lockdep_init_map()

10 years agoMerge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 6 Jan 2012 15:53:34 +0000 (07:53 -0800)]
Merge branch 'core-debugobjects-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timer: Use debugobjects to catch deletion of uninitialized timers
  timer: Setup uninitialized timer with a stub callback
  debugobjects: Extend to assert that an object is initialized
  debugobjects: Be smarter about static objects

10 years agovfs: fix up ENOIOCTLCMD error handling
Linus Torvalds [Thu, 5 Jan 2012 23:40:12 +0000 (15:40 -0800)]
vfs: fix up ENOIOCTLCMD error handling

We're doing some odd things there, which already messes up various users
(see the net/socket.c code that this removes), and it was going to add
yet more crud to the block layer because of the incorrect error code
translation.

ENOIOCTLCMD is not an error return that should be returned to user mode
from the "ioctl()" system call, but it should *not* be translated as
EINVAL ("Invalid argument").  It should be translated as ENOTTY
("Inappropriate ioctl for device").

That EINVAL confusion has apparently so permeated some code that the
block layer actually checks for it, which is sad.  We continue to do so
for now, but add a big comment about how wrong that is, and we should
remove it entirely eventually.  In the meantime, this tries to keep the
changes localized to just the EINVAL -> ENOTTY fix, and removing code
that makes it harder to do the right thing.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agonet: pack skb_shared_info more efficiently
Ian Campbell [Thu, 5 Jan 2012 07:13:39 +0000 (07:13 +0000)]
net: pack skb_shared_info more efficiently

nr_frags can be 8 bits since 256 is plenty of fragments. This allows it to be
packed with tx_flags.

Also by moving ip6_frag_id and dataref (both 4 bytes) next to each other we can
avoid a hole between ip6_frag_id and frag_list on 64 bit systems.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: red: split red_parms into parms and vars
Eric Dumazet [Thu, 5 Jan 2012 02:25:16 +0000 (02:25 +0000)]
net_sched: red: split red_parms into parms and vars

This patch splits the red_parms structure into two components.

One holding the RED 'constant' parameters, and one containing the
variables.

This permits a size reduction of GRED qdisc, and is a preliminary step
to add an optional RED unit to SFQ.

SFQRED will have a single red_parms structure shared by all flows, and a
private red_vars per flow.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dave Taht <dave.taht@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: sfq: extend limits
Eric Dumazet [Wed, 4 Jan 2012 14:18:38 +0000 (14:18 +0000)]
net_sched: sfq: extend limits

SFQ as implemented in Linux is very limited, with at most 127 flows
and limit of 127 packets. [ So if 127 flows are active, we have one
packet per flow ]

This patch brings to SFQ following features to cope with modern needs.

- Ability to specify a smaller per flow limit of inflight packets.
    (default value being at 127 packets)

- Ability to have up to 65408 active flows (instead of 127)

- Ability to have head drops instead of tail drops
  (to drop old packets from a flow)

Example of use : No more than 20 packets per flow, max 8000 flows, max
20000 packets in SFQ qdisc, hash table of 65536 slots.

tc qdisc add ... sfq \
        flows 8000 \
        depth 20 \
        headdrop \
        limit 20000 \
divisor 65536

Ram usage :

2 bytes per hash table entry (instead of previous 1 byte/entry)
32 bytes per flow on 64bit arches, instead of 384 for QFQ, so much
better cache hit ratio.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dave Taht <dave.taht@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agocnic: Improve error recovery on bnx2x devices
Michael Chan [Wed, 4 Jan 2012 12:12:28 +0000 (12:12 +0000)]
cnic: Improve error recovery on bnx2x devices

When a bnx2x device encounters parity errors, it will not respond to all
SPQ messages.  As a result, the shutdown sequence before reset can take
a long time as the ulp drivers (bnx2i/bnx2fc) have to wait for timeout
of all such messages.

To improve this scenario, when bnx2x returns error on the SPQ, we'll send
an immediate response to the ulp drivers to avoid such lengthy timeouts.

Adjust the return code of relevant functions to return error only if
the message cannot be sent on the SPQ so that we'll generate an error
completion to the ulp drivers.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agocnic: Re-init dev->stats_addr after chip reset
Michael Chan [Wed, 4 Jan 2012 12:12:27 +0000 (12:12 +0000)]
cnic: Re-init dev->stats_addr after chip reset

because bnx2x frees the old and allocates new memory during chip reset.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet_sched: Bug in netem reordering
Hagen Paul Pfeifer [Wed, 4 Jan 2012 17:35:26 +0000 (17:35 +0000)]
net_sched: Bug in netem reordering

Not now, but it looks you are correct. q->qdisc is NULL until another
additional qdisc is attached (beside tfifo). See 50612537e9ab2969312.
The following patch should work.

From: Hagen Paul Pfeifer <hagen@jauu.net>

netem: catch NULL pointer by updating the real qdisc statistic

Reported-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobna: fix sparse warnings/errors
stephen hemminger [Wed, 4 Jan 2012 13:02:24 +0000 (13:02 +0000)]
bna: fix sparse warnings/errors

This fixes a several sparse warnings.
  * the __iomem tag was being used incorrectly (needs to be a prefix)
  * several variables should have been static since local to one file
  * the firmware was not being forwared declared
    and was const one place and not the other

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agobna: make ethtool_ops and strings const
stephen hemminger [Wed, 4 Jan 2012 13:02:23 +0000 (13:02 +0000)]
bna: make ethtool_ops and strings const

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoxgmac: cleanups
stephen hemminger [Wed, 4 Jan 2012 13:01:16 +0000 (13:01 +0000)]
xgmac: cleanups

Make local function static, make ethtool_ops const.
Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonet: make ethtool_ops const
stephen hemminger [Wed, 4 Jan 2012 12:59:49 +0000 (12:59 +0000)]
net: make ethtool_ops const

Auditing all usage of ethtool_ops found several drivers that
are not declaring the struct const when it should be.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovmxnet3" make ethtool ops const
stephen hemminger [Wed, 4 Jan 2012 11:58:13 +0000 (11:58 +0000)]
vmxnet3" make ethtool ops const

All tables of function pointers should be const to make hacks
more difficult. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoxen-netback: make ops structs const
stephen hemminger [Wed, 4 Jan 2012 11:56:58 +0000 (11:56 +0000)]
xen-netback: make ops structs const

All tables of function pointers should be const to make hacks
more difficult. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agovirtio_net: Pass gfp flags when allocating rx buffers.
Mike Waychison [Wed, 4 Jan 2012 12:52:32 +0000 (12:52 +0000)]
virtio_net: Pass gfp flags when allocating rx buffers.

Currently, the refill path for RX buffers will always allocate the
buffers as GFP_ATOMIC, even if we are in process context.  This will
fail to apply memory pressure as the worker thread will not contribute
to the freeing of memory.

Fix this by changing add_recvbuf_small to use the gfp variant allocator,
__netdev_alloc_skb_ip_align().

Signed-off-by: Mike Waychison <mikew@google.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call
Neerav Parikh [Wed, 4 Jan 2012 20:23:40 +0000 (20:23 +0000)]
ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call

This patch implements support for ndo_get_fcoe_hbainfo()
call in the ixgbe driver.

This function will be called by the FCoE protocol stack to
obtain device specific information from the underlying
device configured to do FCoE.

Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agonetdev: FCoE: Add new ndo_get_fcoe_hbainfo() call
Neerav Parikh [Wed, 4 Jan 2012 20:23:39 +0000 (20:23 +0000)]
netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call

This adds a new ndo_get_fcoe_hbainfo() call in
net_device_ops for FCoE protocol stack.

If supported by the underlying device, the FCoE protocol
stack will call this to get device specific information
from the underlying device.
This information will then be utilized by the FCoE protocol
stack to register Fiber Channel HBA attributes with the
Fiber Channel Management Service via Fabric Device
Management Interface (FDMI) as per the T11 FC-GS
specification.

Changes in v2:
- As per comments from David Miller aligning the parameters
of the ndo_get_fcoe_hbainfo()

Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoigb: reset PHY after recovering from PHY power down
Koki Sanagi [Wed, 4 Jan 2012 20:23:38 +0000 (20:23 +0000)]
igb: reset PHY after recovering from PHY power down

According to 82576_Datasheet.pdf, PHY setting is lost after PHY power down.
So resetting PHY is needed when recovering from PHY power down to set a default
setting to PHY register.
Owing to this lack, NIC doesn't link up in some rare situation.

Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoigb: add basic runtime PM support
Yan, Zheng [Wed, 4 Jan 2012 20:23:37 +0000 (20:23 +0000)]
igb: add basic runtime PM support

Use the runtime power management framework to add basic runtime PM support
to the igb driver. Namely, make the driver suspend the device when the link
is off and set it up for generating a wakeup event after the link has been
detected again. This feature is disabled by default.

Based on e1000e's runtime PM code.

Changes since v1:
Don't suspend the device when shutting down the interface.
Avoid race between runtime suspending and ethtool operations.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoigb: Add support for byte queue limits.
Eric Dumazet [Wed, 4 Jan 2012 20:23:36 +0000 (20:23 +0000)]
igb: Add support for byte queue limits.

This adds support for byte queue limits (BQL)

Since this driver collects bytes count in 'bytecount' field, use it also
in igb_tx_map()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoe1000: cleanup CE4100 MDIO registers access
Florian Fainelli [Wed, 4 Jan 2012 20:23:35 +0000 (20:23 +0000)]
e1000: cleanup CE4100 MDIO registers access

A global variable is currently used to hold the virtual address of the
CE4100 MDIO base register address. Store the address in the e1000_hw
structure and update macros accordingly.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoe1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove
Florian Fainelli [Wed, 4 Jan 2012 20:23:34 +0000 (20:23 +0000)]
e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove

We are not unmapping ce4100_gbe_mdio_base_virt in exit path in case
we are running on a CE4100 adapter, fix that.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoe1000: fix lockdep splat in shutdown handler
Jesse Brandeburg [Wed, 4 Jan 2012 20:23:33 +0000 (20:23 +0000)]
e1000: fix lockdep splat in shutdown handler

As reported by Steven Rostedt, e1000 has a lockdep splat added
during the recent merge window.  The issue is that
cancel_delayed_work is called while holding our private mutex.

There is no reason that I can see to hold the mutex during pci
shutdown, it was more just paranoia that I put the mutex_lock
around the call to e1000_down.

In a quick survey lots of drivers handle locking differently when
being called by the pci layer.  The assumption here is that we
don't need the mutexes' protection in this function because
the driver could not be unloaded while in the shutdown handler
which is only called at reboot or poweroff.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Thu, 5 Jan 2012 15:12:45 +0000 (10:12 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-next into for-davem

Conflicts:
drivers/net/wireless/b43legacy/dma.c

10 years agoath6kl: revert USB support
John W. Linville [Thu, 5 Jan 2012 14:13:06 +0000 (09:13 -0500)]
ath6kl: revert USB support

The ath6kl driver is causing build failures when the ath6kl bits are
not built as modules.  A better fix is forthcoming in a future release,
but for now lets revert the problematic code.

This reverts the following commits:

fde57764ef8751b9aca11b6f6221ac5555bda699
d70385a26ad9a122a5450d066550470107b6bc38
59d954dda4b9b3f3e61d4b87a2b26952b8c4c09d

Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Thu, 5 Jan 2012 02:35:43 +0000 (21:35 -0500)]
Merge git://git./linux/kernel/git/davem/net

10 years agomwl8k: Changing the driver version to 0.13
Yogesh Ashok Powar [Tue, 20 Dec 2011 06:09:29 +0000 (11:39 +0530)]
mwl8k: Changing the driver version to 0.13

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoLinux 3.2
Linus Torvalds [Wed, 4 Jan 2012 23:55:44 +0000 (15:55 -0800)]
Linux 3.2

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Wed, 4 Jan 2012 23:03:49 +0000 (15:03 -0800)]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  fix CAN MAINTAINERS SCM tree type
  mwifiex: fix crash during simultaneous scan and connect
  b43: fix regression in PIO case
  ath9k: Fix kernel panic in AR2427 in AP mode
  CAN MAINTAINERS update
  net: fsl: fec: fix build for mx23-only kernel
  sch_qfq: fix overflow in qfq_update_start()
  Revert "Bluetooth: Increase HCI reset timeout in hci_dev_do_close"

10 years agominixfs: misplaced checks lead to dentry leak
Al Viro [Wed, 4 Jan 2012 10:51:03 +0000 (10:51 +0000)]
minixfs: misplaced checks lead to dentry leak

bitmap size sanity checks should be done *before* allocating ->s_root;
there their cleanup on failure would be correct.  As it is, we do iput()
on root inode, but leak the root dentry...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoptrace: ensure JOBCTL_STOP_SIGMASK is not zero after detach
Oleg Nesterov [Wed, 4 Jan 2012 16:29:20 +0000 (17:29 +0100)]
ptrace: ensure JOBCTL_STOP_SIGMASK is not zero after detach

This is the temporary simple fix for 3.2, we need more changes in this
area.

1. do_signal_stop() assumes that the running untraced thread in the
   stopped thread group is not possible. This was our goal but it is
   not yet achieved: a stopped-but-resumed tracee can clone the running
   thread which can initiate another group-stop.

   Remove WARN_ON_ONCE(!current->ptrace).

2. A new thread always starts with ->jobctl = 0. If it is auto-attached
   and this group is stopped, __ptrace_unlink() sets JOBCTL_STOP_PENDING
   but JOBCTL_STOP_SIGMASK part is zero, this triggers WANR_ON(!signr)
   in do_jobctl_trap() if another debugger attaches.

   Change __ptrace_unlink() to set the artificial SIGSTOP for report.

   Alternatively we could change ptrace_init_task() to copy signr from
   current, but this means we can copy it for no reason and hide the
   possible similar problems.

Acked-by: Tejun Heo <tj@kernel.org>
Cc: <stable@kernel.org> [3.1]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoptrace: partially fix the do_wait(WEXITED) vs EXIT_DEAD->EXIT_ZOMBIE race
Oleg Nesterov [Wed, 4 Jan 2012 16:29:02 +0000 (17:29 +0100)]
ptrace: partially fix the do_wait(WEXITED) vs EXIT_DEAD->EXIT_ZOMBIE race

Test-case:

int main(void)
{
int pid, status;

pid = fork();
if (!pid) {
for (;;) {
if (!fork())
return 0;
if (waitpid(-1, &status, 0) < 0) {
printf("ERR!! wait: %m\n");
return 0;
}
}
}

assert(ptrace(PTRACE_ATTACH, pid, 0,0) == 0);
assert(waitpid(-1, NULL, 0) == pid);

assert(ptrace(PTRACE_SETOPTIONS, pid, 0,
PTRACE_O_TRACEFORK) == 0);

do {
ptrace(PTRACE_CONT, pid, 0, 0);
pid = waitpid(-1, NULL, 0);
} while (pid > 0);

return 1;
}

It fails because ->real_parent sees its child in EXIT_DEAD state
while the tracer is going to change the state back to EXIT_ZOMBIE
in wait_task_zombie().

The offending commit is 823b018e which moved the EXIT_DEAD check,
but in fact we should not blame it. The original code was not
correct as well because it didn't take ptrace_reparented() into
account and because we can't really trust ->ptrace.

This patch adds the additional check to close this particular
race but it doesn't solve the whole problem. We simply can't
rely on ->ptrace in this case, it can be cleared if the tracer
is multithreaded by the exiting ->parent.

I think we should kill EXIT_DEAD altogether, we should always
remove the soon-to-be-reaped child from ->children or at least
we should never do the DEAD->ZOMBIE transition. But this is too
complex for 3.2.

Reported-and-tested-by: Denys Vlasenko <vda.linux@googlemail.com>
Tested-by: Lukasz Michalik <lmi@ift.uni.wroc.pl>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: <stable@kernel.org> [3.0+]
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoMerge git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Wed, 4 Jan 2012 22:57:55 +0000 (14:57 -0800)]
Merge git://git.samba.org/sfrench/cifs-2.6

* git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] default ntlmv2 for cifs mount delayed to 3.3
  cifs: fix bad buffer length check in coalesce_t2

10 years agopowerpc: fix compile error with 85xx/p1010rdb.c
Tony Breeds [Fri, 9 Dec 2011 01:39:55 +0000 (12:39 +1100)]
powerpc: fix compile error with 85xx/p1010rdb.c

Current linux-next compiled with mpc85xx_defconfig causes this:

arch/powerpc/platforms/85xx/p1010rdb.c:41:14: error: 'np' undeclared (first use in this function)
arch/powerpc/platforms/85xx/p1023_rds.c:102:14: error: 'np' undeclared (first use in this function)

Introduced in:
  commit 996983b75cebb1bc1c2c545f20336f24ebfa17af
  Author: Kyle Moffett <Kyle.D.Moffett@boeing.com>
  Date:   Fri Dec 2 06:28:02 2011 +0000
  powerpc/mpic: Search for open-pic device-tree node if NULL

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc: fix compile error with 85xx/p1023_rds.c
Michael Neuling [Thu, 8 Dec 2011 06:10:54 +0000 (17:10 +1100)]
powerpc: fix compile error with 85xx/p1023_rds.c

Current linux-next compiled with mpc85xx_smp_defconfig causes this:
arch/powerpc/platforms/85xx/p1023_rds.c: In function 'mpc85xx_rds_pic_init':
arch/powerpc/platforms/85xx/p1023_rds.c:102:14: error: 'np' undeclared (first use in this function)
arch/powerpc/platforms/85xx/p1023_rds.c:102:14: note: each undeclared identifier is reported only once for each function it appears in

Introduced in:
  commit 996983b75cebb1bc1c2c545f20336f24ebfa17af
  Author: Kyle Moffett <Kyle.D.Moffett@boeing.com>
  Date:   Fri Dec 2 06:28:02 2011 +0000
  powerpc/mpic: Search for open-pic device-tree node if NULL

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/fsl: add MSI support for the Freescale hypervisor
Timur Tabi [Tue, 13 Dec 2011 20:51:59 +0000 (14:51 -0600)]
powerpc/fsl: add MSI support for the Freescale hypervisor

Add support for vmpic-msi nodes to the fsl_msi driver.  The MSI is
virtualized by the hypervisor, so the vmpic-msi does not contain a 'reg'
property.  Instead, the driver uses hcalls.

Add support for the "msi-address-64" property to the fsl_pci driver.
The Freescale hypervisor typically puts the virtualized MSIIR register
in the page after the end of DDR, so we extend the DDR ATMU to cover it.
Any other location for MSIIR is not supported, for now.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agoarch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
Julia Lawall [Fri, 23 Dec 2011 17:39:33 +0000 (18:39 +0100)]
arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree

rmu needs to be freed before leaving the function in an error case.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/fsl: Add support for Integrated Flash Controller
Prabhakar Kushwaha [Tue, 27 Dec 2011 12:09:13 +0000 (17:39 +0530)]
powerpc/fsl: Add support for Integrated Flash Controller

Integrated Flash Controller supports various flashes like NOR, NAND
and other devices using NOR, NAND and GPCM Machine available on it.
IFC supports four chip selects.

Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Liu Shuo <b35362@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/fsl: update compatiable on fsl 16550 uart nodes
Kumar Gala [Mon, 28 Nov 2011 19:58:53 +0000 (13:58 -0600)]
powerpc/fsl: update compatiable on fsl 16550 uart nodes

The Freescale serial port's are pretty much a 16550, however there are
some FSL specific bugs and features.  Add a "fsl,ns16550" compatiable
string to allow code to handle those FSL specific issues.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/85xx: fix PCI and localbus properties in p1022ds.dts
Timur Tabi [Fri, 9 Dec 2011 15:20:03 +0000 (09:20 -0600)]
powerpc/85xx: fix PCI and localbus properties in p1022ds.dts

PCI ranges, localbus reg and localbus chip-select 2 range do not match
the memory map setup by bootloader.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
Timur Tabi [Mon, 12 Dec 2011 23:25:45 +0000 (17:25 -0600)]
powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig

Commit 7c4b2f09 (powerpc: Update mpc85xx/corenet 32-bit defconfigs)
accidentally disabled the ePAPR byte channel driver in the defconfig for
Freescale CoreNet platforms.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/fsl: Update defconfigs to enable some standard FSL HW features
Kumar Gala [Thu, 8 Dec 2011 06:55:57 +0000 (00:55 -0600)]
powerpc/fsl: Update defconfigs to enable some standard FSL HW features

corenet64_smp_defconfig:
 - enabled rapidio

corenet32_smp_defconfig:
 - enabled hugetlbfs, rapidio

mpc85xx_smp_defconfig:
 - enabled P1010RDB, hugetlbfs, SPI, SDHC, Crypto/CAAM

mpc85xx_smp_defconfig:
 - enabled hugetlbfs, SPI, SDHC, Crypto/CAAM

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc: Add TBI PHY node to first MDIO bus
Andy Fleming [Wed, 4 Jan 2012 21:28:31 +0000 (15:28 -0600)]
powerpc: Add TBI PHY node to first MDIO bus

Systems which use the fsl_pq_mdio driver need to specify an
address for TBI PHY transactions such that the address does
not conflict with any PHYs on the bus (all transactions to
that address are directed to the onboard TBI PHY). The driver
used to scan for a free address if no address was specified,
however this ran into issues when the PHY Lib was fixed so
that all MDIO transactions were protected by a mutex. As it
is, the code was meant to serve as a transitional tool until
the device trees were all updated to specify the TBI address.

The best fix for the mutex issue was to remove the scanning code,
but it turns out some of the newer SoCs have started to omit
the tbi-phy node when SGMII is not being used. As such, these
devices will now fail unless we add a tbi-phy node to the first
mdio controller.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agosbc834x: put full compat string in board match check
Paul Gortmaker [Mon, 5 Dec 2011 16:41:07 +0000 (11:41 -0500)]
sbc834x: put full compat string in board match check

The commit 883c2cfc8bcc0fd00c5d9f596fb8870f481b5bda:

 "fix of_flat_dt_is_compatible() to match the full compatible string"

causes silent boot death on the sbc8349 board because it was
just looking for 8349 and not 8349E -- as originally there
were non-E (no SEC/encryption) chips available.  Just add the
E to the board detection string since all boards I've seen
were manufactured with the E versions.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agopowerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
Kumar Gala [Thu, 1 Dec 2011 05:38:18 +0000 (23:38 -0600)]
powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address

There is an issue on FSL-BookE 64-bit devices (P5020) in which PCIe
devices that are capable of doing 64-bit DMAs (like an Intel e1000) do
not function and crash the kernel if we have >4G of memory in the system.

The reason is that the existing code only sets up one inbound window for
access to system memory across PCIe.  That window is limited to a 32-bit
address space.  So on systems we'll end up utilizing SWIOTLB for dma
mappings.  However SWIOTLB dma ops implement dma_alloc_coherent() as
dma_direct_alloc_coherent().  Thus we can end up with dma addresses that
are not accessible because of the inbound window limitation.

We could possibly set the SWIOTLB alloc_coherent op to
swiotlb_alloc_coherent() however that does not address the issue since
the swiotlb_alloc_coherent() will behave almost identical to
dma_direct_alloc_coherent() since the devices coherent_dma_mask will be
greater than any address allocated by swiotlb_alloc_coherent() and thus
we'll never bounce buffer it into a range that would be dma-able.

The easiest and best solution is to just make it so that a 64-bit
capable device is able to DMA to any internal system address.

We accomplish this by opening up a second inbound window that maps all
of memory above the internal SoC address width so we can set it up to
access all of the internal SoC address space if needed.

We than fixup the dma_ops and dma_offset for PCIe devices with a dma
mask greater than the maximum internal SoC address.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
10 years agoipv6/addrconf: speedup /proc/net/if_inet6 filling
Mihai Maruseac [Tue, 3 Jan 2012 23:31:35 +0000 (23:31 +0000)]
ipv6/addrconf: speedup /proc/net/if_inet6 filling

This ensures a linear behaviour when filling /proc/net/if_inet6 thus making
ifconfig run really fast on IPv6 only addresses. In fact, with this patch and
the IPv4 one sent a while ago, ifconfig will run in linear time regardless of
address type.

IPv4 related patch: f04565ddf52e401880f8ba51de0dff8ba51c99fd
 dev: use name hash for dev_seq_ops
 ...

Some statistics (running ifconfig > /dev/null on a different setup):

iface count / IPv6 no-patch time / IPv6 patched time / IPv4 time
----------------------------------------------------------------
      6250  |       0.23 s       |      0.13 s       |  0.11 s
     12500  |       0.62 s       |      0.28 s       |  0.22 s
     25000  |       2.91 s       |      0.57 s       |  0.46 s
     50000  |      11.37 s       |      1.21 s       |  0.94 s
    128000  |      86.78 s       |      3.05 s       |  2.54 s

Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com>
Cc: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: place comments before code
Florian Fainelli [Wed, 4 Jan 2012 08:59:38 +0000 (08:59 +0000)]
r6040: place comments before code

checkpatch.pl complained about the line exceding 80 columns, and the
comment was actually on the same line as the code, fix that.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: use __aligned(size)
Florian Fainelli [Wed, 4 Jan 2012 08:59:37 +0000 (08:59 +0000)]
r6040: use __aligned(size)

instead of __attribute__((__aligned(size)__))

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: use definitions for MAC_SM register read/writes
Florian Fainelli [Wed, 4 Jan 2012 08:59:36 +0000 (08:59 +0000)]
r6040: use definitions for MAC_SM register read/writes

Bit 1 is the reset bit of the MAC status machine register, define and
use it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: use MAC_RST bit definition with MCR1 read/writes
Florian Fainelli [Wed, 4 Jan 2012 08:59:35 +0000 (08:59 +0000)]
r6040: use MAC_RST bit definition with MCR1 read/writes

MAC_RST bit is already defined, use it instead of 0x1 where applicable.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: define more MCR0 register bits
Florian Fainelli [Wed, 4 Jan 2012 08:59:34 +0000 (08:59 +0000)]
r6040: define more MCR0 register bits

Define more MCR0-register bits and use them in place of the bits values.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: remove unused variables and definitions
Florian Fainelli [Wed, 4 Jan 2012 08:59:33 +0000 (08:59 +0000)]
r6040: remove unused variables and definitions

Since the conversion to phylib (3831861b: r6040: implement phylib) some
PHY-related variables and definitions are now useless, remove them.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agor6040: use an unique MDIO bus name
Florian Fainelli [Wed, 4 Jan 2012 08:50:40 +0000 (08:50 +0000)]
r6040: use an unique MDIO bus name

We should use an unique MDIO bus name which does not clash with anything
else in the system like the Fixed MDIO bus. The bus is now named:
r6040-<card number> which is unique in the system.

Reported-by: Vladimir Kolpakov <vova.kolpakov@gmail.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agoipv6: Check RA for sllao when configuring optimistic ipv6 address (v2)
Neil Horman [Wed, 4 Jan 2012 10:49:15 +0000 (10:49 +0000)]
ipv6: Check RA for sllao when configuring optimistic ipv6 address (v2)

Recently Dave noticed that a test we did in ipv6_add_addr to see if we next hop
route for the interface we're adding an addres to was wrong (see commit
7ffbcecbeed91e5874e9a1cfc4c0cbb07dac3069).  for one, it never triggers, and two,
it was completely wrong to begin with.  This test was meant to cover this
section of RFC 4429:

3.3 Modifications to RFC 2462 Stateless Address Autoconfiguration

   * (modifies section 5.5) A host MAY choose to configure a new address
        as an Optimistic Address.  A host that does not know the SLLAO
        of its router SHOULD NOT configure a new address as Optimistic.
        A router SHOULD NOT configure an Optimistic Address.

This patch should bring us into proper compliance with the above clause.  Since
we only add a SLAAC address after we've received a RA which may or may not
contain a source link layer address option, we can pass a pointer to that option
to addrconf_prefix_rcv (which may be null if the option is not present), and
only set the optimistic flag if the option was found in the RA.

Change notes:
(v2) modified the new parameter to addrconf_prefix_rcv to be a bool rather than
a pointer to make its use more clear as per request from davem.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
10 years agomac80211: remove dead code
Mohammed Shafi Shajakhan [Fri, 30 Dec 2011 11:19:01 +0000 (16:49 +0530)]
mac80211: remove dead code

ieee80211_offchannel_enable_all_ps function is no longer used
and looks like its logic is extensively handled in
ieee80211_offchannel_stop_vifs

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomwl8k: Recover from firmware crash
Yogesh Ashok Powar [Fri, 30 Dec 2011 11:05:27 +0000 (16:35 +0530)]
mwl8k: Recover from firmware crash

In case of firmware crash, reload the firmware and reconfigure it
by triggering ieee80211_hw_restart; mac80211 utility function.

V2 Addressed following comments from Lennert:
 - Stop the queues during reload
 - Removed atomic_t declaration for hw_restart
 - Extend the firmware reload support for sta firmware as well
 - Other misc changes

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomac80211: Call driver commands after drv_start in mac80211 restart code
Yogesh Ashok Powar [Fri, 30 Dec 2011 11:04:25 +0000 (16:34 +0530)]
mac80211: Call driver commands after drv_start in mac80211 restart code

Ideally, hardware/firmware initialization is complete after the
drv_start routine. In mac80211 restart code (ieee80211_reconfig),
defer calling the driver commands i.e. setup fragmentation
threshold, rts threshold and coverage class till drv_start
routine is called.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
v2: Removed extra blank line added.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: tx queue enable is read only for EDMA chipsets
Mohammed Shafi Shajakhan [Wed, 28 Dec 2011 13:39:54 +0000 (19:09 +0530)]
ath9k: tx queue enable is read only for EDMA chipsets

for EDMA chip AR_Q_TXE (tx enable for each queue) is read only

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: Change RF3853 to RF3053.
Gertjan van Wingerde [Wed, 28 Dec 2011 00:53:24 +0000 (01:53 +0100)]
rt2x00: Change RF3853 to RF3053.

According to the latest Ralink vendor drivers, this seems to be the real
RF chipset type.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: RT3593 is also applicable to USB.
Gertjan van Wingerde [Wed, 28 Dec 2011 00:53:23 +0000 (01:53 +0100)]
rt2x00: RT3593 is also applicable to USB.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00usb: Zero USB padding before sending URB
Jakub Kiciński [Wed, 28 Dec 2011 00:53:22 +0000 (01:53 +0100)]
rt2x00usb: Zero USB padding before sending URB

When USB driver requires padding at the end of frame or URB it will report
this need by increasing return value of get_tx_data_len callback. Common
USB code uses that return value as desired URB length.

Ensure that appropriate part of skb's tailroom exists and is zeroed.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
--
 drivers/net/wireless/rt2x00/rt2x00usb.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2800usb: Let rt2x00usb handle USB padding
Jakub Kiciński [Wed, 28 Dec 2011 00:53:21 +0000 (01:53 +0100)]
rt2800usb: Let rt2x00usb handle USB padding

Older USB drivers does not append end padding to skb but instead report
it in size of data to be transmitted to HW. rt2800usb should follow that
behaviour. Custom write_tx_data callback which was adding pad to skb
is not be needed any more.

Thanks to this patch frames handed back from rt2800usb to mac80211 will
no longer contain end padding.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: Convert big if-statements to switch-statements.
Gertjan van Wingerde [Wed, 28 Dec 2011 00:53:20 +0000 (01:53 +0100)]
rt2x00: Convert big if-statements to switch-statements.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: Whitespace cleanup.
Gertjan van Wingerde [Wed, 28 Dec 2011 00:53:19 +0000 (01:53 +0100)]
rt2x00: Whitespace cleanup.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: Identify rt2800usb chipsets.
Gertjan van Wingerde [Wed, 28 Dec 2011 00:53:18 +0000 (01:53 +0100)]
rt2x00: Identify rt2800usb chipsets.

According to the latest USB ID database these are all RT2770 / RT2870 / RT307x
devices.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agocarl9170: move checksum and txseq into subfunctions
Christian Lamparter [Tue, 27 Dec 2011 20:01:55 +0000 (21:01 +0100)]
carl9170: move checksum and txseq into subfunctions

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2800usb: Move ID out of unknown
Larry Finger [Tue, 27 Dec 2011 18:22:51 +0000 (12:22 -0600)]
rt2800usb: Move ID out of unknown

Testing on the openSUSE wireless forum has shown that a Linksys
WUSB54GC v3 with USB ID 1737:0077 works with rt2800usb when the ID is
written to /sys/.../new_id. This ID can therefore be moved out of UNKNOWN.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomac80211: use RCU read locks for sta_info_get
Mohammed Shafi Shajakhan [Tue, 27 Dec 2011 13:24:07 +0000 (18:54 +0530)]
mac80211: use RCU read locks for sta_info_get

this is being recently introduced by the commit
a85e1d55974646a442d95911e3f7d7a891ea9ac5

Cc: Paul Stewart <pstew@google.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoipw2x00: remove reset_port functionality
Stanislav Yakovlev [Mon, 26 Dec 2011 23:31:11 +0000 (18:31 -0500)]
ipw2x00: remove reset_port functionality

Removes reset_port since it isn't used anywhere as suggested by Johannes Berg.

Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomac80211: fix kernel panic in IBSS due to a regression
Mohammed Shafi Shajakhan [Mon, 26 Dec 2011 05:13:29 +0000 (10:43 +0530)]
mac80211: fix kernel panic in IBSS due to a regression

kernel panic occurs when we create an IBSS mode and leave it for
sometime without any joiner and this is introduced by the
commit ec2b774e7c91094d8c00de579646f1162b87b01e where we don't
put proper braces for 'list_for_each_entry_safe' and we pass an
invalid 'sta' pointer to __sta_info_destroy

EIP is at __list_add+0xe/0xa0
EAX: f3b63db4 EBX: 00000000 ECX: eab88c1c EDX: 00000000
ESI: 00000000 EDI: 00000246 EBP: f3b63d80 ESP: f3b63d58
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process kworker/u:2 (pid: 198, ti=f3b62000 task=f3afbea0
task.ti=f3b62000)
Stack:
00000000 00000000 f9ef9821 00000000 00000000 eab88c30
f3b63d80 c017f623
eab88bf0 eab88bf0 f3b63dd0 c066f925 00000000 00000002
00000000 f9ef9821
f3b63da0 c0180a2b eab88c1c eab88c30 00000002 f3afbea0
eab88bf4 f3b63db4
 Call Trace:
[<f9ef9821>] ? __ieee80211_stop_tx_ba_session+0x31/0x60
[mac80211]
[<c017f623>] ? debug_mutex_add_waiter+0x23/0x60
[<c066f925>] __mutex_lock_common+0xd5/0x390
[<f9ef9821>] ? __ieee80211_stop_tx_ba_session+0x31/0x60
[mac80211]
[<c0180a2b>] ? trace_hardirqs_off+0xb/0x10
[<c066fd37>] mutex_lock_nested+0x47/0x60
[<f9ef9821>] ? __ieee80211_stop_tx_ba_session+0x31/0x60
[mac80211]
[<f9ef9821>] __ieee80211_stop_tx_ba_session+0x31/0x60
[mac80211]
[<f9ef8989>] ieee80211_sta_tear_down_BA_sessions+0x39/0x60 [mac80211]
[<f9ef1a67>] __sta_info_destroy+0x57/0x780 [mac80211]
[<f9ef2223>] ieee80211_sta_expire+0x93/0xb0 [mac80211]
[<f9efc8f6>] ieee80211_ibss_work+0x2d6/0x530 [mac80211]

Cc: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agomac80211: fix scan state machine
Mohammed Shafi Shajakhan [Sat, 24 Dec 2011 13:13:28 +0000 (18:43 +0530)]
mac80211: fix scan state machine

when we run high bandwidth UDP traffic and we trigger a scan, the scan
state machine seems to be looping in SUSPEND->RESUME->DECISION->SUSPEND
and SET_CHANNEL seems to be never called as 'tx_empty' is never true
while running UDP traffic. fix this by settting SET_CHANNEL state when
we get into RESUME state.

Cc: Leela Kella <leela@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agonet/rfkill/rfkill-gpio.c: introduce missing kfree
Julia Lawall [Fri, 23 Dec 2011 17:39:27 +0000 (18:39 +0100)]
net/rfkill/rfkill-gpio.c: introduce missing kfree

Error handling code following a kmalloc should free the allocated data.
The label fail_alloc already does this for rfkill.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k_hw: increase tx status ring buffer size
Rajkumar Manoharan [Fri, 23 Dec 2011 15:57:02 +0000 (21:27 +0530)]
ath9k_hw: increase tx status ring buffer size

AR9003 chips read tx status from ring buffer whose max number of
status descriptor is mininal compared to max number of tx buffers.
On a stress condition, it can be easily overflown which might cause
false tx hung detection. Though increasing number of max status
descriptors consumes more memory, it helps to avoid false positive
chip resets.

Cc: Paul Stewart <pstew@google.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 3945: fix hw passive scan on radar channels
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:50 +0000 (08:13 +0100)]
iwlegacy: 3945: fix hw passive scan on radar channels

Patch fix firmware error on "iw dev wlan0 scan passive" for
hardware scanning (with disable_hw_scan=0 module parameter).

 iwl3945 0000:03:00.0: Microcode SW error detected. Restarting 0x82000008.
 iwl3945 0000:03:00.0: Loaded firmware version: 15.32.2.9
 iwl3945 0000:03:00.0: Start IWL Error Log Dump:
 iwl3945 0000:03:00.0: Status: 0x0002A2E4, count: 1
 iwl3945 0000:03:00.0: Desc       Time       asrtPC blink2 ilink1  nmiPC   Line
 iwl3945 0000:03:00.0: SYSASSERT     (0x5) 0041263900 0x13756 0x0031C 0x00000 764
 iwl3945 0000:03:00.0: Error Reply type 0x000002FC cmd C_SCAN (0x80) seq 0x443E ser 0x00340000
 iwl3945 0000:03:00.0: Command C_SCAN failed: FW Error
 iwl3945 0000:03:00.0: Can't stop Rx DMA.

We have disable ability to change passive scanning to active on
particular channel when traffic is detected on that channel. Otherwise
firmware will report error, when we try to do passive scan on radar
channels.

Reported-and-debugged-by: Pedro Francisco <pedrogfrancisco@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 3945: simplify calculations of retry limit
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:49 +0000 (08:13 +0100)]
iwlegacy: 3945: simplify calculations of retry limit

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: random 3945-rs.c cleanups
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:48 +0000 (08:13 +0100)]
iwlegacy: random 3945-rs.c cleanups

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 4965: remove one il4965_hdl_beacon
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:47 +0000 (08:13 +0100)]
iwlegacy: 4965: remove one il4965_hdl_beacon

We have two such functions.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 3945: get rid of hw_{set,get}_rate
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:46 +0000 (08:13 +0100)]
iwlegacy: 3945: get rid of hw_{set,get}_rate

Remove these helpers, some are not unused at all, one can be
unrolled in place of use.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 4965: small tx_cmd build cleanup
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:45 +0000 (08:13 +0100)]
iwlegacy: 4965: small tx_cmd build cleanup

Get rid of two inline functions related and simplify a bit
rts_retry_limit calculations.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: 4965: toggle tx antenna inline
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:44 +0000 (08:13 +0100)]
iwlegacy: 4965: toggle tx antenna inline

Make function static and change antenna number inline.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: move some i/o helpers out of inline
Stanislaw Gruszka [Fri, 23 Dec 2011 07:13:43 +0000 (08:13 +0100)]
iwlegacy: move some i/o helpers out of inline

This save us about 20k of text size, and should have no impact on
performance as hot paths do not use much I/O.

Before:
   text    data     bss     dec     hex filename
 108512    1784     168  110464   1af80 drivers/net/wireless/iwlegacy/iwl3945.ko
 165730    2164     156  168050   29072 drivers/net/wireless/iwlegacy/iwl4965.ko
  91942     328      48   92318   1689e drivers/net/wireless/iwlegacy/iwlegacy.ko

After:
   text    data     bss     dec     hex filename
  95556    1784     168   97508   17ce4 drivers/net/wireless/iwlegacy/iwl3945.ko
 154853    2164     156  157173   265f5 drivers/net/wireless/iwlegacy/iwl4965.ko
  91634     328      48   92010   1676a drivers/net/wireless/iwlegacy/iwlegacy.ko

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoiwlegacy: off by one in iwl3945_hw_build_tx_cmd_rate()
Dan Carpenter [Fri, 23 Dec 2011 07:13:42 +0000 (08:13 +0100)]
iwlegacy: off by one in iwl3945_hw_build_tx_cmd_rate()

We use "rate_index" like this:
rate = iwl3945_rates[rate_index].plcp;
The iwl3945_rates[] array has IWL_RATE_COUNT_3945 elements so the
limit here is off by one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>