linux-kernel - Re: [PATCH] checkpatch: Add of_device_id to structs that should be const

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Message-ID: <CAL_Jsq+x7BTPkOFqqM0b4i6nSTXs26GaueukFKS6JU-2tMgsFw@mail.gmail.com>
Date:	Tue, 10 Feb 2015 00:11:51 -0600
From:	Rob Herring <robherring2@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...onical.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] checkpatch: Add of_device_id to structs that should be const

On Mon, Feb 9, 2015 at 11:34 AM, Joe Perches <joe@...ches.com> wrote:
> Uses of struct of_device_id are most commonly const.
>
> Suggest using it as such.
>
> Signed-off-by: Joe Perches <joe@...ches.com>

Acked-by: Rob Herring <robh@...nel.org>

> ---
>  scripts/checkpatch.pl | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 3642b0d..368db0d 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -5216,8 +5216,9 @@ sub process {
>                              "please use device_initcall() or more appropriate function instead of __initcall() (see include/linux/init.h)\n" . $herecurr);
>                 }
>
> -# check for various ops structs, ensure they are const.
> -               my $struct_ops = qr{acpi_dock_ops|
> +# check for various structs that are normally const (ops, kgdb, device_tree)
> +               my $const_structs = qr{
> +                               acpi_dock_ops|
>                                 address_space_operations|
>                                 backlight_ops|
>                                 block_device_operations|
> @@ -5240,6 +5241,7 @@ sub process {
>                                 mtrr_ops|
>                                 neigh_ops|
>                                 nlmsvc_binding|
> +                               of_device_id|
>                                 pci_raw_ops|
>                                 pipe_buf_operations|
>                                 platform_hibernation_ops|
> @@ -5255,7 +5257,7 @@ sub process {
>                                 usb_mon_operations|
>                                 wd_ops}x;
>                 if ($line !~ /\bconst\b/ &&
> -                   $line =~ /\bstruct\s+($struct_ops)\b/) {
> +                   $line =~ /\bstruct\s+($const_structs)\b/) {
>                         WARN("CONST_STRUCT",
>                              "struct $1 should normally be const\n" .
>                                 $herecurr);
>
>
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