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17 May 2024, 11:00:25 UTC
Revision 8db1486065141e619e4855b84e350ef32064f7e1 authored by Nicolas Iooss on 17 July 2015, 23:23:42 UTC, committed by Linus Torvalds on 17 July 2015, 23:39:53 UTC 
include, lib: add __printf attributes to several function prototypes
 
Using __printf attributes helps to detect several format string issues
at compile time (even though -Wformat-security is currently disabled in
Makefile).  For example it can detect when formatting a pointer as a
number, like the issue fixed in commit a3fa71c40f18 ("wl18xx: show
rx_frames_per_rates as an array as it really is"), or when the arguments
do not match the format string, c.f.  for example commit 5ce1aca81435
("reiserfs: fix __RASSERT format string").

To prevent similar bugs in the future, add a __printf attribute to every
function prototype which needs one in include/linux/ and lib/.  These
functions were mostly found by using gcc's -Wsuggest-attribute=format
flag.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 7f9be77
History
Tip revision: 8db1486065141e619e4855b84e350ef32064f7e1 authored by Nicolas Iooss on 17 July 2015, 23:23:42 UTC
include, lib: add __printf attributes to several function prototypes
Tip revision: 8db1486
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