Nathan Chancellor 5661dd95a2 printk: Convert a use of sprintf to snprintf in console_unlock ... When CONFIG_PRINTK is disabled (e.g. when building allnoconfig), clang warns: ../kernel/printk/printk.c:2416:10: warning: 'sprintf' will always overflow; destination buffer has size 0, but format string expands to at least 33 [-Wfortify-source] len = sprintf(text, ^ 1 warning generated. It is not wrong; text has a zero size when CONFIG_PRINTK is disabled because LOG_LINE_MAX and PREFIX_MAX are both zero. Change to snprintf so that this case is explicitly handled without any risk of overflow. Link: https://github.com/ClangBuiltLinux/linux/issues/846 Link: 6d485ff455 Link: http://lkml.kernel.org/r/20200130221644.2273-1-natechancellor@gmail.com Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-kernel@vger.kernel.org Cc: clang-built-linux@googlegroups.com Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>		2020-02-11 13:01:00 +01:00
..
braille.c	printk: Replace strncmp() with str_has_prefix()	2019-08-16 09:54:08 +02:00
braille.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
console_cmdline.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
internal.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
printk_safe.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
printk.c	printk: Convert a use of sprintf to snprintf in console_unlock	2020-02-11 13:01:00 +01:00