docs: printk-formats: Treat char as always unsigned

The Linux kernel switched to have char be equivalent to usigned char.
Reflect this in the printk specifiers.

Fixes: 3bc753c06d ("kbuild: treat char as always unsigned")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20230703145839.14248-2-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2023-07-03 17:58:39 +03:00 committed by Petr Mladek
parent 46d57a7a8e
commit 243e212ff8

View file

@ -15,8 +15,9 @@ Integer types
If variable is of Type, use printk format specifier:
------------------------------------------------------------
char %d or %hhx
signed char %d or %hhx
unsigned char %u or %x
char %u or %x
short int %d or %hx
unsigned short int %u or %x
int %d or %x