The patch titled
Subject: checkpatch: add 'Prefer ARRAY_SIZE" test
has been added to the -mm tree. Its filename is
checkpatch-add-prefer-array_size-test.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-add-prefer-array_size-test.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-add-prefer-array_size-test.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: add 'Prefer ARRAY_SIZE" test
Add a test for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo).
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff -puN scripts/checkpatch.pl~checkpatch-add-prefer-array_size-test scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-add-prefer-array_size-test
+++ a/scripts/checkpatch.pl
@@ -3227,6 +3227,19 @@ sub process {
$herecurr);
}
+# check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo)
+ if ($line =~ m@\bsizeof\s*\(\s*($Lval)\s*\)@) {
+ my $array = $1;
+ if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) {
+ my $array_div = $1;
+ if (WARN("ARRAY_SIZE",
+ "Prefer ARRAY_SIZE($array)\n" . $herecurr) &&
+ $fix) {
+ $fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/;
+ }
+ }
+ }
+
# check for function declarations without arguments like "int foo()"
if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) {
if (ERROR("FUNCTION_WITHOUT_ARGS",
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
ocfs2-logging-remove-static-buffer-use-vsprintf-extension-%pv.patch
ocfs2-neaten-do_error-ocfs2_error-and-ocfs2_abort.patch
slub-use-bool-function-return-values-of-true-false-not-1-0.patch
proc-show-locks-in-proc-pid-fdinfo-x.patch
proc-show-locks-in-proc-pid-fdinfo-x-v2.patch
maintainers-use-tabs-consistently.patch
maintainers-credits-remove-stefano-brivio-from-b43.patch
x86-mtrr-if-remove-use-of-seq_printf-return-value.patch
power-wakeup-remove-use-of-seq_printf-return-value.patch
rtc-remove-use-of-seq_printf-return-value.patch
ipc-remove-use-of-seq_printf-return-value.patch
microblaze-mb-remove-use-of-seq_printf-return-value.patch
microblaze-mb-remove-use-of-seq_printf-return-value-fix.patch
nios2-cpuinfo-remove-use-of-seq_printf-return-value.patch
arm-plat-pxa-remove-use-of-seq_printf-return-value.patch
openrisc-remove-use-of-seq_printf-return-value.patch
cris-remove-use-of-seq_printf-return-value.patch
cris-fasttimer-remove-use-of-seq_printf-return-value.patch
s390-remove-use-of-seq_printf-return-value.patch
proc-remove-use-of-seq_printf-return-value.patch
cgroup-remove-use-of-seq_printf-return-value.patch
tracing-remove-use-of-seq_printf-return-value.patch
lru_cache-remove-use-of-seq_printf-return-value.patch
parisc-remove-use-of-seq_printf-return-value.patch
lib-vsprintfc-even-faster-decimal-conversion.patch
mm-utilc-add-kstrimdup.patch
checkpatch-improve-no-space-is-necessary-after-a-cast-test.patch
checkpatch-add-spell-checking-of-email-subject-line.patch
checkpatch-spell-check-reudce.patch
checkpatch-add-optional-codespell-dictionary-to-find-more-typos.patch
checkpatch-match-more-world-writable-permissions.patch
checkpatch-match-more-world-writable-permissions-fix.patch
checkpatch-improve-return-negative-errno-check.patch
checkpatch-add-test-for-repeated-const-uses.patch
checkpatch-dont-ask-for-asm-fileh-to-linux-fileh-unconditionally.patch
checkpatch-submittingpatches-suggest-line-wrapping-commit-messages-at-75-columns.patch
checkpatch-add-define-foo-string-long-line-exception.patch
checkpatch-add-uart_ops-to-normally-const-structs.patch
checkpatch-add-prefer-array_size-test.patch
rtc-use-more-standard-kernel-logging-styles.patch
adfs-returning-correct-return-values.patch
linux-next.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
