dibs: Remove KMSG_COMPONENT macro

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.

[1] https://lwn.net/Articles/292650/

Signed-off-by: Heiko Carstens <[e-mail]>
Acked-by: Alexandra Winter <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/dibs/dibs_main.c

···
  *
  *  Copyright IBM Corp. 2025
  */
-#define KMSG_COMPONENT "dibs"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#define pr_fmt(fmt) "dibs: " fmt
 
 #include <linux/module.h>
 #include <linux/types.h>