linux-kernel - Re: [PATCH 2/7] efi: Document #define FOO_PROTOCOL

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Date:	Mon, 27 Jun 2016 04:14:18 -0700
From:	Joe Perches <joe@...ches.com>
To:	Ingo Molnar <mingo@...nel.org>,
	Matt Fleming <matt@...eblueprint.co.uk>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H . Peter Anvin" <hpa@...or.com>, Peter Jones <pjones@...hat.com>,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org
Subject: Re: [PATCH 2/7] efi: Document #define FOO_PROTOCOL_GUID layout

On Mon, 2016-06-27 at 12:49 +0200, Ingo Molnar wrote:
> * Matt Fleming <matt@...eblueprint.co.uk> wrote:
[]
> > + * EFI Configuration Table and GUID definitions
> > + *
> > + * These should be formatted roughly like the ones in the UEFI SPEC has
> > + * them.  It makes them easier to grep for, and they look the same when
> > + * you're staring at them.
[]
> Btw., another possible way to organize the GUIDs would be to ignore checkpatch (we 
> should ignore checkpatch when it's wrong)

Completely agree.  checkpatch is brainless.

> and go for a nice table format:
> 
> #define NULL_GUID				EFI_GUID(0x00000000, 0x0000, 0x0000,  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)

Much nicer.

There are a few more files that use EFI_GUID.
It'd be good to standardize.

$ git grep --name-only -w EFI_GUID
arch/ia64/include/asm/sal.h
arch/ia64/kernel/esi.c
arch/x86/platform/efi/quirks.c
block/partitions/efi.h
drivers/infiniband/hw/hfi1/efivar.c
drivers/scsi/isci/probe_roms.h
include/linux/efi.h

Maybe a checkpatch line-length exclusion:
---
 scripts/checkpatch.pl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4904ced..cc787e6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2764,6 +2764,10 @@ sub process {
 				 $line =~ /^\+\s*#\s*define\s+\w+\s+$String$/) {
 				$msg_type = "";
 
+			# EFI_GUID is another special case
+			} elsif ($line =~ /^\+.*\bEFI_GUID\s*\(/) {
+				$msg_type = "";
+
 			# Otherwise set the alternate message types
 
 			# a comment starts before $max_line_length