linux-kernel - [PATCH] x86, doc: Remove cmdline_size from list of fields to be filled in for EFI handover

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Date:	Sat, 28 Mar 2015 12:14:09 +0000
From:	Alex Smith <alex@...x-smith.me.uk>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>
Cc:	Alex Smith <alex@...x-smith.me.uk>,
	Matt Fleming <matt.fleming@...el.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] x86, doc: Remove cmdline_size from list of fields to be filled in for EFI handover

The cmdline_size field in setup_header is listed as read-only, and is
never read by the kernel. Therefore, there is no need for it to be set
by a boot loader implementing the EFI handover protocol, so remove it
from the list of fields required to be set by a boot loader.

Signed-off-by: Alex Smith <alex@...x-smith.me.uk>
Cc: H. Peter Anvin <hpa@...ux.intel.com>
Cc: Matt Fleming <matt.fleming@...el.com>
Cc: x86@...nel.org
Cc: linux-kernel@...r.kernel.org
---
 Documentation/x86/boot.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index a75e3ad..2685581 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -1118,7 +1118,6 @@ The boot loader *must* fill out the following fields in bp,
 
     o hdr.code32_start
     o hdr.cmd_line_ptr
-    o hdr.cmdline_size
     o hdr.ramdisk_image (if applicable)
     o hdr.ramdisk_size  (if applicable)
 
-- 
2.3.1

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