+ zram-remove-kmsg_component-macro.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: zram: remove KMSG_COMPONENT macro
has been added to the -mm mm-new branch.  Its filename is
     zram-remove-kmsg_component-macro.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-remove-kmsg_component-macro.patch

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

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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------------------------------------------------------
From: Heiko Carstens <hca@linux.ibm.com>
Subject: zram: remove KMSG_COMPONENT macro
Date: Wed, 26 Nov 2025 15:36:02 +0100

The KMSG_COMPONENT macro is a leftover of the s390 specific "kernel
message catalog" from 2008 [1] which never made it upstream.

The macro was added to s390 code to allow for an out-of-tree patch which
used this to generate unique message ids.  Also this out-of-tree doesn't
exist anymore.

The pattern of how the KMSG_COMPONENT is used was partially also used for
non s390 specific code, for whatever reasons.

Remove the macro in order to get rid of a pointless indirection.

Link: https://lkml.kernel.org/r/20251126143602.2207435-1-hca@linux.ibm.com
Link: https://lwn.net/Articles/292650/ [1]
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/block/zram/zram_drv.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/block/zram/zram_drv.c~zram-remove-kmsg_component-macro
+++ a/drivers/block/zram/zram_drv.c
@@ -12,8 +12,7 @@
  *
  */
 
-#define KMSG_COMPONENT "zram"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#define pr_fmt(fmt) "zram: " fmt
 
 #include <linux/module.h>
 #include <linux/kernel.h>
_

Patches currently in -mm which might be from hca@linux.ibm.com are

zram-remove-kmsg_component-macro.patch