[Linux-kernel-mentees] [PATCH] checkpatch: add fix option for ASSIGNMENT_CONTINUATIONS
Lukas Bulwahn
lukas.bulwahn at gmail.com
Sun Nov 15 15:18:08 UTC 2020
On Sun, Nov 15, 2020 at 12:54 PM Aditya Srivastava <yashsri421 at gmail.com> wrote:
>
> Currently, checkpatch warns us if an assignment operator is placed
> at the start of a line and not at the end of previous line.
>
> E.g., running checkpatch on commit 8195b1396ec8 ("hv_netvsc: fix
> deadlock on hotplug") reports:
>
> CHECK: Assignment operator '=' should be on the previous line
> + struct netvsc_device *nvdev
> + = container_of(w, struct netvsc_device, subchan_work);
>
> Provide a simple fix by appending assignment operator to the previous
> line and removing from the current line
>
Looks reasonable to me.
Lukas
> Signed-off-by: Aditya Srivastava <yashsri421 at gmail.com>
> ---
> scripts/checkpatch.pl | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index c9aaaa443265..5b1a5a65e69a 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -3542,8 +3542,13 @@ sub process {
>
> # check for assignments on the start of a line
> if ($sline =~ /^\+\s+($Assignment)[^=]/) {
> - CHK("ASSIGNMENT_CONTINUATIONS",
> - "Assignment operator '$1' should be on the previous line\n" . $hereprev);
> + if (CHK("ASSIGNMENT_CONTINUATIONS",
> + "Assignment operator '$1' should be on the previous line\n" . $hereprev) &&
> + $fix) {
> + # add assignment operator to the previous line, remove from current line
> + $fixed[$fixlinenr - 1] .= " $1";
> + $fixed[$fixlinenr] =~ s/$1\s*//;
> + }
> }
>
> # check for && or || at the start of a line
> --
> 2.17.1
>
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