The patch titled
Subject: checkpatch: Add check for kcalloc argument order
has been added to the -mm tree. Its filename is
checkpatch-add-check-for-kcalloc-argument-order.patch
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------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: Add check for kcalloc argument order
kcalloc is sometimes misused with the first and second arguments switched.
Same issue with kmalloc_array too.
Bleat if sizeof is the first argument
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 6 ++++++
1 file changed, 6 insertions(+)
diff -puN scripts/checkpatch.pl~checkpatch-add-check-for-kcalloc-argument-order scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-add-check-for-kcalloc-argument-order
+++ a/scripts/checkpatch.pl
@@ -3476,6 +3476,12 @@ sub process {
"unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n"; . $herecurr);
}
+# check for alloc argument mismatch
+ if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) {
+ WARN("ALLOC_ARRAY_ARGS",
+ "$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
+ }
+
# check for multiple semicolons
if ($line =~ /;\s*;\s*$/) {
WARN("ONE_SEMICOLON",
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
checkpatch-fix-float-creation-of-match-variables.patch
linux-next.patch
compiler-gcc4h-reorder-macros-based-upon-gcc-ver.patch
compiler-gcch-add-gcc-recommended-gcc_version-macro.patch
compiler-gcc34h-use-gcc_version-macro.patch
compiler-gcc4h-bugh-remove-duplicate-macros.patch
bugh-fix-build_bug_on-macro-in-__checker__.patch
bugh-prevent-double-evaulation-of-in-build_bug_on.patch
bugh-make-build_bug_on-generate-compile-time-error.patch
compilerh-bugh-prevent-double-error-messages-with-build_bug_on.patch
bugh-compilerh-introduce-compiletime_assert-build_bug_on_msg.patch
get_maintainerpl-find-maintainers-for-removed-files.patch
checkpatch-prefer-dev_level-to-dev_printkkern_level.patch
checkpatch-warn-on-unnecessary-__devfoo-section-markings.patch
checkpatch-add-joe-to-maintainers.patch
checkpatch-dont-emit-the-camelcase-warning-for-pagefoo.patch
checkpatch-add-check-for-kcalloc-argument-order.patch
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