The patch titled Subject: checkpatch: warn on unnecessary parentheses around references of foo->bar has been added to the -mm tree. Its filename is checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar.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: warn on unnecessary parentheses around references of foo->bar Parentheses around &(foo->bar) and *(foo->bar) are unnecessary. Emit a --strict only message on these uses. Signed-off-by: Joe Perches <joe@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/checkpatch.pl | 8 ++++++++ 1 file changed, 8 insertions(+) diff -puN scripts/checkpatch.pl~checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar scripts/checkpatch.pl --- a/scripts/checkpatch.pl~checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar +++ a/scripts/checkpatch.pl @@ -3498,6 +3498,14 @@ sub process { } } +# check unnecessary parentheses around addressof/dereference single $Lvals +# ie: &(foo->bar) should be &foo->bar and *(foo->bar) should be *foo->bar + + while ($line =~ /(?:[^&]&\s*|\*)\(\s*($Ident\s*(?:$Member\s*)+)\s*\)/g) { + CHK("UNNECESSARY_PARENTHESES", + "Unnecessary parentheses around $1\n" . $herecurr); + } + #goto labels aren't indented, allow a single space however if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) { _ Patches currently in -mm which might be from joe@xxxxxxxxxxx are origin.patch checkpatch-check-git-commit-descriptions.patch fs-squashfs-file_directc-replace-countsize-kmalloc-by-kmalloc_array.patch printk-make-dynamic-kernel-ring-buffer-alignment-explicit.patch printk-move-power-of-2-practice-of-ring-buffer-size-to-a-helper.patch printk-make-dynamic-units-clear-for-the-kernel-ring-buffer.patch printk-allow-increasing-the-ring-buffer-depending-on-the-number-of-cpus.patch mm-utilc-add-kstrimdup.patch kernelh-remove-deprecated-pack_hex_byte.patch checkpatch-attempt-to-find-unnecessary-out-of-memory-messages.patch checkpatch-warn-on-unnecessary-else-after-return-or-break.patch checkpatch-fix-complex-macro-false-positive-for-escaped-constant-char.patch checkpatch-fix-function-pointers-in-blank-line-needed-after-declarations-test.patch checkpatch-ignore-email-headers-better.patch checkpatchpl-also-suggest-else-if-when-if-follows-brace.patch checkpatch-add-test-for-blank-lines-after-function-struct-union-enum.patch checkpatch-add-a-multiple-blank-lines-test.patch checkpatch-change-blank-line-after-declaration-type-to-line_spacing.patch checkpatch-quiet-kconfig-help-message-checking.patch checkpatch-warn-on-unnecessary-parentheses-around-references-of-foo-bar.patch fs-isofs-logging-clean-up.patch sysctl-remove-now-unused-typedef-ctl_table.patch sysctl-remove-now-unused-typedef-ctl_table-fix.patch fs-qnx6-convert-printk-to-pr_foo.patch fs-qnx6-use-pr_fmt-and-__func__-in-logging.patch fs-qnx6-update-debugging-to-current-functions.patch linux-next.patch pci-dma-compat-add-pci_zalloc_consistent-helper.patch atm-use-pci_zalloc_consistent.patch block-use-pci_zalloc_consistent.patch crypto-use-pci_zalloc_consistent.patch infiniband-use-pci_zalloc_consistent.patch i810-use-pci_zalloc_consistent.patch media-use-pci_zalloc_consistent.patch amd-use-pci_zalloc_consistent.patch atl1e-use-pci_zalloc_consistent.patch enic-use-pci_zalloc_consistent.patch sky2-use-pci_zalloc_consistent.patch micrel-use-pci_zalloc_consistent.patch qlogic-use-pci_zalloc_consistent.patch irda-use-pci_zalloc_consistent.patch ipw2100-use-pci_zalloc_consistent.patch mwl8k-use-pci_zalloc_consistent.patch rtl818x-use-pci_zalloc_consistent.patch rtlwifi-use-pci_zalloc_consistent.patch scsi-use-pci_zalloc_consistent.patch staging-use-pci_zalloc_consistent.patch synclink_gt-use-pci_zalloc_consistent.patch vme-bridges-use-pci_zalloc_consistent.patch amd-neaten-and-remove-unnecessary-oom-messages.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