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printk: add print_hex_dump_devel()

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[ Upstream commit d134feeb5d ]

Add print_hex_dump_devel() as the hex dump equivalent of pr_devel(),
which emits output only when DEBUG is enabled, but keeps call sites
compiled otherwise.

Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stable-dep-of: 177730a273 ("crypto: caam - guard HMAC key hex dumps in hash_digest_key")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thorsten Blum
2026-05-10 11:43:37 -04:00
committed by Greg Kroah-Hartman
parent 83bd62fa96
commit fe4fced8f3
1 changed files with 13 additions and 0 deletions
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include/linux/printk.h
+13
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@@ -608,6 +608,19 @@ static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
}
#endif
#if defined(DEBUG)
#define print_hex_dump_devel(prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii) \
print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii)
#else
static inline void print_hex_dump_devel(const char *prefix_str, int prefix_type,
int rowsize, int groupsize,
const void *buf, size_t len, bool ascii)
{
}
#endif
/**
* print_hex_dump_bytes - shorthand form of print_hex_dump_debug() with default
* params