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hexdump: do not print debug dumps for !CONFIG_DEBUG

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print_hex_dump_debug() is likely supposed to be analogous to pr_debug() or
dev_dbg() & friends.  Currently it will adhere to dynamic debug, but will
not stub out prints if CONFIG_DEBUG is not set.  Let's make it do the
right thing, because I am tired of having my dmesg buffer full of hex
dumps on production systems.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Walleij 2015-09-09 15:37:11 -07:00 committed by Linus Torvalds
parent 9bf98f168b
commit cdf17449af
1 changed files with 8 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
include/linux/printk.h
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@ -456,11 +456,17 @@ static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
groupsize, buf, len, ascii) \ groupsize, buf, len, ascii) \
dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii) groupsize, buf, len, ascii)
#else #elif defined(DEBUG)
#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \ #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii) \ groupsize, buf, len, ascii) \
print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \ print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii) groupsize, buf, len, ascii)
#endif /* defined(CONFIG_DYNAMIC_DEBUG) */ #else
static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
int rowsize, int groupsize,
const void *buf, size_t len, bool ascii)
{
}
#endif
#endif #endif