compat: add pr_<level>_once macros

Add functions from 2.6.38 kernel commit:

commit 16cb839f13324978bd58082e69de81a711802b11
Author: Joe Perches <joe@perches.com>
Date:   Wed Jan 12 16:59:46 2011 -0800

    include/linux/printk.h: add pr_<level>_once macros

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

diff --git a/include/linux/compat-2.6.38.h b/include/linux/compat-2.6.38.h
index 2dd1910..dfe1250 100644 (file)
--- a/include/linux/compat-2.6.38.h
+++ b/include/linux/compat-2.6.38.h
@@ -46,6 +46,31 @@ static inline int skb_checksum_start_offset(const struct sk_buff *skb)
        return skb->csum_start - skb_headroom(skb);
 }
 
        return skb->csum_start - skb_headroom(skb);
 }
 

+/* from include/linux/printk.h */ 
+#define pr_emerg_once(fmt, ...)                                        \
+       printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_alert_once(fmt, ...)                                        \
+       printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_crit_once(fmt, ...)                                 \
+       printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_err_once(fmt, ...)                                  \
+       printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_warn_once(fmt, ...)                                 \
+       printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_notice_once(fmt, ...)                               \
+       printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_info_once(fmt, ...)                                 \
+       printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_cont_once(fmt, ...)                                 \
+       printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)
+#if defined(DEBUG)
+#define pr_debug_once(fmt, ...)                                        \
+       printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#else
+#define pr_debug_once(fmt, ...)                                        \
+       no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#endif
+

 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)) */
 
 #endif /* LINUX_26_38_COMPAT_H */
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)) */
 
 #endif /* LINUX_26_38_COMPAT_H */