+ lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug.patch added to mm-nonmm-unstable branch

+ lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: lib/hexdump: print_hex_dump_bytes() calls print_hex_dump_debug()
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Geert Uytterhoeven <geert+renesas@glider.be>
Subject: lib/hexdump: print_hex_dump_bytes() calls print_hex_dump_debug()
Date: Tue, 31 Mar 2026 17:21:43 +0200

print_hex_dump_bytes() claims to be a simple wrapper around
print_hex_dump(), but it actally calls print_hex_dump_debug(), which means
no output is printed if (dynamic) DEBUG is disabled.

Update the documentation to match the implementation.

Link: https://lkml.kernel.org/r/3d5c3069fd9102ecaf81d044b750cd613eb72a08.1774970392.git.geert+renesas@glider.be
Fixes: 091cb0994edd20d6 ("lib/hexdump: make print_hex_dump_bytes() a nop on !DEBUG builds")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/printk.h |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/include/linux/printk.h~lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug
+++ a/include/linux/printk.h
@@ -802,7 +802,8 @@ static inline void print_hex_dump_debug(
 #endif
 
 /**
- * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params
+ * print_hex_dump_bytes - shorthand form of print_hex_dump_debug() with default
+ *                        params
  * @prefix_str: string to prefix each line with;
  *  caller supplies trailing spaces for alignment if desired
  * @prefix_type: controls whether prefix of an offset, address, or none
@@ -810,7 +811,7 @@ static inline void print_hex_dump_debug(
  * @buf: data blob to dump
  * @len: number of bytes in the @buf
  *
- * Calls print_hex_dump(), with log level of KERN_DEBUG,
+ * Calls print_hex_dump_debug(), with log level of KERN_DEBUG,
  * rowsize of 16, groupsize of 1, and ASCII output included.
  */
 #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len)	\
_

Patches currently in -mm which might be from geert+renesas@glider.be are

lib-hexdump-print_hex_dump_bytes-calls-print_hex_dump_debug.patch