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authorKees Cook <keescook@chromium.org>2020-05-07 19:36:22 -0700
committerKees Cook <keescook@chromium.org>2020-05-30 10:34:03 -0700
commitfb13cb8a0482105a415e24042209d02a684255e2 (patch)
tree8cc5c83aea2f8c4b2676b0075e0d8200b02b8da3 /kernel/printk
parentb1f6f161b236d0e5a9222fb8b482e65aaff13689 (diff)
downloadlinux-fb13cb8a0482105a415e24042209d02a684255e2.tar.bz2
printk: Introduce kmsg_dump_reason_str()
The pstore subsystem already had a private version of this function. With the coming addition of the pstore/zone driver, this needs to be shared. As it really should live with printk, move it there instead. Link: https://lore.kernel.org/lkml/20200515184434.8470-4-keescook@chromium.org/ Acked-by: Petr Mladek <pmladek@suse.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'kernel/printk')
-rw-r--r--kernel/printk/printk.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index a121c2255737..14ca4d05d902 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3144,6 +3144,23 @@ EXPORT_SYMBOL_GPL(kmsg_dump_unregister);
static bool always_kmsg_dump;
module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR);
+const char *kmsg_dump_reason_str(enum kmsg_dump_reason reason)
+{
+ switch (reason) {
+ case KMSG_DUMP_PANIC:
+ return "Panic";
+ case KMSG_DUMP_OOPS:
+ return "Oops";
+ case KMSG_DUMP_EMERG:
+ return "Emergency";
+ case KMSG_DUMP_SHUTDOWN:
+ return "Shutdown";
+ default:
+ return "Unknown";
+ }
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_reason_str);
+
/**
* kmsg_dump - dump kernel log to kernel message dumpers.
* @reason: the reason (oops, panic etc) for dumping