[PATCH] checkpatch: Add of_device_id to structs that should be const

[Joe Perches <joe@perches.com>]

Uses of struct of_device_id are most commonly const.

Suggest using it as such.

Signed-off-by: Joe Perches <joe@perches.com>
---
 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);