AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

checkpatch: whinge about bool bitfields

Browse Source 
Using bool in a bitfield isn't a good idea as the alignment behavior is
arch implementation defined.

Suggest using unsigned int or u<8|16|32> instead.

Link: http://lkml.kernel.org/r/e22fb871b1b7f2fda4b22f3a24e0d7f092eb612c.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2018-04-10 16:34:25 -07:00 committed by Linus Torvalds
parent 38dca988bb
commit 5d43090261
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
scripts/checkpatch.pl
View File

@ -6251,6 +6251,12 @@ sub process {
} }
} }
# check for bool bitfields
if ($sline =~ /^.\s+bool\s*$Ident\s*:\s*\d+\s*;/) {
WARN("BOOL_BITFIELD",
"Avoid using bool as bitfield. Prefer bool bitfields as unsigned int or u<8|16|32>\n" . $herecurr);
}
# check for semaphores initialized locked # check for semaphores initialized locked
if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) { if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
WARN("CONSIDER_COMPLETION", WARN("CONSIDER_COMPLETION",