Messages in this thread | | | Date | Wed, 2 Mar 2022 09:24:12 +0100 | From | Petr Mladek <> | Subject | Re: [PATCH] printk: fix return value of printk.devkmsg __setup handler |
| |
On Mon 2022-02-28 14:05:56, Randy Dunlap wrote: > If an invalid option value is used with "printk.devkmsg=<value>", > it is silently ignored. > If a valid option value is used, it is honored but the wrong return > value (0) is used, indicating that the command line option had an > error and was not handled. This string is not added to init's > environment strings due to init/main.c::unknown_bootoption() > checking for a '.' in the boot option string and then considering > that string to be an "Unused module parameter". > > Print a warning message if a bad option string is used. > Always return 1 from the __setup handler to indicate that the command > line option has been handled. > > Fixes: 750afe7babd1 ("printk: add kernel parameter to control writes to /dev/kmsg") > Signed-off-by: Randy Dunlap <rdunlap@infradead.org> > Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru> > Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru > Cc: Borislav Petkov <bp@suse.de> > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Petr Mladek <pmladek@suse.com> > Cc: Sergey Senozhatsky <senozhatsky@chromium.org> > Cc: Steven Rostedt <rostedt@goodmis.org> > Cc: John Ogness <john.ogness@linutronix.de>
The patch has been committed into printk/linux.git, branch for-5.18.
Best Regards, Petr
| |