* [PATCH] crash: add prefix for crash dumping messages
@ 2024-04-18 3:58 Baoquan He
0 siblings, 0 replies; only message in thread
From: Baoquan He @ 2024-04-18 3:58 UTC (permalink / raw)
To: kexec; +Cc: akpm, dyoung, jirislaby, Baoquan He
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.
Signed-off-by: Baoquan He <bhe@redhat.com>
---
kernel/crash_core.c | 2 ++
kernel/crash_reserve.c | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index 78b5dc7cee3a..1e7ac977f7c0 100644
--- a/kernel/crash_core.c
+++ b/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>
diff --git a/kernel/crash_reserve.c b/kernel/crash_reserve.c
index 066668799f75..5b2722a93a48 100644
--- a/kernel/crash_reserve.c
+++ b/kernel/crash_reserve.c
@@ -109,7 +109,7 @@ static int __init parse_crashkernel_mem(char *cmdline,
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(char *cmdline,
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;
}
}
--
2.41.0
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