The patch titled
pr_debug: check pr_debug() arguments
has been added to the -mm tree. Its filename is
pr_debug-check-pr_debug-arguments.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: pr_debug: check pr_debug() arguments
From: Zach Brown <zach.brown@xxxxxxxxxx>
check pr_debug() arguments
When DEBUG isn't defined pr_debug() is defined away as an empty macro. By
throwing away the arguments we allow completely incorrect code to build.
Instead let's make it an empty inline which checks arguments and mark it so gcc
can check the format specification.
This results in a seemingly insignificant code size increase. A x86-64
allyesconfig:
text data bss dec hex filename
25354768 7191098 4854720 37400586 23ab00a vmlinux.before
25354945 7191138 4854720 37400803 23ab0e3 vmlinux
Signed-off-by: Zach Brown <zach.brown@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/kernel.h | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff -puN include/linux/kernel.h~pr_debug-check-pr_debug-arguments include/linux/kernel.h
--- a/include/linux/kernel.h~pr_debug-check-pr_debug-arguments
+++ a/include/linux/kernel.h
@@ -216,8 +216,10 @@ extern void dump_stack(void);
#define pr_debug(fmt,arg...) \
printk(KERN_DEBUG fmt,##arg)
#else
-#define pr_debug(fmt,arg...) \
- do { } while (0)
+static inline int __attribute__ ((format (printf, 1, 2))) pr_debug(const char * fmt, ...)
+{
+ return 0;
+}
#endif
#define pr_info(fmt,arg...) \
_
Patches currently in -mm which might be from zach.brown@xxxxxxxxxx are
git-ocfs2.patch
add-vector-aio-support.patch
add-vector-aio-support-fix.patch
pr_debug-aio-use-size_t-length-modifier-in-pr_debug-format-arguments.patch
pr_debug-configfs-use-size_t-length-modifier-in-pr_debug-format-argument.patch
pr_debug-sysfs-use-size_t-length-modifier-in-pr_debug-format-arguments.patch
pr_debug-umem-repair-nonexistant-bh-pr_debug-reference.patch
pr_debug-tipar-repair-nonexistant-pr_debug-argument-use.patch
pr_debug-dell_rbu-fix-pr_debug-argument-warnings.patch
pr_debug-ifb-replace-missing-comma-to-separate-pr_debug-arguments.patch
pr_debug-trident-use-size_t-length-modifier-in-pr_debug-format-arguments.patch
pr_debug-check-pr_debug-arguments.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
