Per the document, the kernel can accept comma separated command line like
nmi_watchdog=nopanic,0. However, the code doesn't really handle it. Fix
the kernel to handle it properly.
Link: https://lkml.kernel.org/r/20240430060236.1878002-1-song@kernel.org
Signed-off-by: Song Liu <song@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
static int __init hardlockup_panic_setup(char *str)
{
+next:
if (!strncmp(str, "panic", 5))
hardlockup_panic = 1;
else if (!strncmp(str, "nopanic", 7))
watchdog_hardlockup_user_enabled = 0;
else if (!strncmp(str, "1", 1))
watchdog_hardlockup_user_enabled = 1;
+ while (*(str++)) {
+ if (*str == ',') {
+ str++;
+ goto next;
+ }
+ }
return 1;
}
__setup("nmi_watchdog=", hardlockup_panic_setup);