From fb13cb8a0482105a415e24042209d02a684255e2 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 7 May 2020 19:36:22 -0700 Subject: 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 Acked-by: Sergey Senozhatsky Reviewed-by: Pavel Tatashin Signed-off-by: Kees Cook --- kernel/printk/printk.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'kernel/printk') 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 -- cgit v1.2.3