+ crash-add-prefix-for-crash-dumping-messages.patch added to mm-nonmm-unstable branch

+ crash-add-prefix-for-crash-dumping-messages.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: crash: add prefix for crash dumping messages
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     crash-add-prefix-for-crash-dumping-messages.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/crash-add-prefix-for-crash-dumping-messages.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: Baoquan He <bhe@redhat.com>
Subject: crash: add prefix for crash dumping messages
Date: Thu, 18 Apr 2024 11:58:43 +0800

Add pr_fmt() to kernel/crash_core.c to add the module name to debugging
message printed as prefix.

And also add prefix 'crashkernel:' to two lines of message printing code
in kernel/crash_reserve.c. In kernel/crash_reserve.c, almost all
debugging messages have 'crashkernel:' prefix or there's keyword
crashkernel at the beginning or in the middle, adding pr_fmt() makes it
redundant.

Link: https://lkml.kernel.org/r/20240418035843.1562887-1-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/crash_core.c    |    2 ++
 kernel/crash_reserve.c |    4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

--- a/kernel/crash_core.c~crash-add-prefix-for-crash-dumping-messages
+++ a/kernel/crash_core.c
@@ -4,6 +4,8 @@
  * Copyright (C) 2002-2004 Eric Biederman  <ebiederm@xmission.com>
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/buildid.h>
 #include <linux/init.h>
 #include <linux/utsname.h>
--- a/kernel/crash_reserve.c~crash-add-prefix-for-crash-dumping-messages
+++ a/kernel/crash_reserve.c
@@ -109,7 +109,7 @@ static int __init parse_crashkernel_mem(
 
 		size = memparse(cur, &tmp);
 		if (cur == tmp) {
-			pr_warn("Memory value expected\n");
+			pr_warn("crashkernel: Memory value expected\n");
 			return -EINVAL;
 		}
 		cur = tmp;
@@ -132,7 +132,7 @@ static int __init parse_crashkernel_mem(
 			cur++;
 			*crash_base = memparse(cur, &tmp);
 			if (cur == tmp) {
-				pr_warn("Memory value expected after '@'\n");
+				pr_warn("crahskernel: Memory value expected after '@'\n");
 				return -EINVAL;
 			}
 		}
_

Patches currently in -mm which might be from bhe@redhat.com are

mm-vmallocc-optimize-to-reduce-arguments-of-alloc_vmap_area.patch
x86-remove-unneeded-memblock_find_dma_reserve.patch
mm-mm_initc-remove-the-useless-dma_reserve.patch
mm-mm_initc-add-new-function-calc_nr_all_pages.patch
mm-mm_initc-remove-meaningless-calculation-of-zone-managed_pages-in-free_area_init_core.patch
mm-mm_initc-remove-meaningless-calculation-of-zone-managed_pages-in-free_area_init_core-v3.patch
mm-mm_initc-remove-unneeded-calc_memmap_size.patch
mm-mm_initc-remove-arch_reserved_kernel_pages.patch
mm-move-array-mem_section-init-code-out-of-memory_present.patch
mm-init-remove-the-unnecessary-special-treatment-for-memory-less-node.patch
mm-init-remove-the-unnecessary-special-treatment-for-memory-less-node-v2.patch
mm-make-__absent_pages_in_range-as-static.patch
mm-page_allocc-remove-unneeded-codes-in-numa-version-of-build_zonelists.patch
mm-page_allocc-remove-unneeded-codes-in-numa-version-of-build_zonelists-v2.patch
mm-mm_initc-remove-the-outdated-code-comment-above-deferred_grow_zone.patch
mm-page_allocc-dont-show-protection-in-zones-lowmem_reserve-for-empty-zone.patch
mm-page_allocc-change-the-array-length-to-migrate_pcptypes.patch
documentation-kdump-clean-up-the-outdated-description.patch
kexec-fix-the-unexpected-kexec_dprintk-macro.patch
crash-add-prefix-for-crash-dumping-messages.patch