Subject: + checkpatch-warn-on-unnecessary-void-function-return-statements.patch added to -mm tree
To: joe@xxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 02 Jun 2014 13:40:14 -0700
The patch titled
Subject: checkpatch: warn on unnecessary void function return statements
has been added to the -mm tree. Its filename is
checkpatch-warn-on-unnecessary-void-function-return-statements.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-warn-on-unnecessary-void-function-return-statements.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-warn-on-unnecessary-void-function-return-statements.patch
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------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: warn on unnecessary void function return statements
void function lines that use a single tab then "return;" are generally
unnecessary.
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN scripts/checkpatch.pl~checkpatch-warn-on-unnecessary-void-function-return-statements scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-warn-on-unnecessary-void-function-return-statements
+++ a/scripts/checkpatch.pl
@@ -3470,6 +3470,13 @@ sub process {
}
}
+# unnecessary return in a void function? (a single leading tab, then return;)
+ if ($sline =~ /^\+\treturn\s*;\s*$/ &&
+ $prevline =~ /^\+/) {
+ WARN("RETURN_VOID",
+ "void function return statements are not generally useful\n" . $herecurr);
+ }
+
# if statements using unnecessary parentheses - ie: if ((foo == bar))
if ($^V && $^V ge 5.10.0 &&
$line =~ /\bif\s*((?:\(\s*){2,})/) {
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
maintainers-add-me-as-the-get_maintainerpl-maintainer.patch
mm-slubc-convert-printk-to-pr_foo.patch
mm-slubc-convert-vnsprintf-static-to-va_format.patch
documentation-expand-clarify-debug-documentation.patch
printk-use-symbolic-defines-for-console-loglevels.patch
lib-bugc-convert-printk-to-pr_foo.patch
mm-utilc-add-kstrimdup.patch
checkpatch-fix-wildcard-dt-compatible-string-checking.patch
checkpatch-always-warn-on-missing-blank-line-after-variable-declaration-block.patch
checkpatch-improve-missing-blank-line-after-declarations-test.patch
checkpatch-make-strict-a-default-for-files-in-drivers-net-and-net.patch
checkpatch-warn-on-defines-ending-in-semicolon.patch
checkpatch-add-warning-for-kmalloc-kzalloc-with-multiply.patch
checkpatch-prefer-kstrtofoo-to-sscanfbuf-%lhuidx-bar.patch
checkpatch-warn-on-unnecessary-void-function-return-statements.patch
fs-efs-convert-printk-to-pr_foo.patch
fs-efs-add-pr_fmt-use-__func__.patch
fs-efs-convert-printkkern_debug-to-pr_debug.patch
init-mainc-dont-use-pr_debug.patch
fs-isofs-logging-clean-up.patch
fs-coda-replace-printk-by-pr_foo.patch
fs-coda-logging-prefix-uniformization.patch
fs-coda-use-__func__.patch
fs-hfsplus-wrapperc-replace-shift-loop-by-ilog2.patch
fs-affs-convert-printk-to-pr_foo.patch
fs-affs-pr_debug-cleanup.patch
fs-pstore-logging-clean-up.patch
fs-pstore-logging-clean-up-fix.patch
fs-devpts-inodec-convert-printk-to-pr_foo.patch
fs-devpts-inodec-convert-printk-to-pr_foo-fix.patch
ipc-semc-add-a-printk_once-for-semctlgetncnt-getzcnt.patch
linux-next.patch
arm-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
ia64-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
tile-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
cdrom-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
random-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
parport-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
scsi-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
coda-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
fscache-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
lockd-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
nfs-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
inotify-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
ntfs-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
fs-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
key-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
ipc-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
sysctl-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
mm-convert-use-of-typedef-ctl_table-to-struct-ctl_table.patch
maintainers-add-linux-api-for-review-of-api-abi-changes.patch
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