linux-kernel - [tip: x86/cleanups] x86/crash: Use resource

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Date:   Thu, 09 Jan 2020 13:47:34 -0000
From:   "tip-bot2 for Julia Lawall" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Julia Lawall <Julia.Lawall@...ia.fr>, Borislav Petkov <bp@...e.de>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/cleanups] x86/crash: Use resource_size()

The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID:     1429b568ad71943a374aa4a8d3772d5a8816ddba
Gitweb:        https://git.kernel.org/tip/1429b568ad71943a374aa4a8d3772d5a8816ddba
Author:        Julia Lawall <Julia.Lawall@...ia.fr>
AuthorDate:    Wed, 01 Jan 2020 18:49:49 +01:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Thu, 09 Jan 2020 14:40:03 +01:00

x86/crash: Use resource_size()

Use resource_size() rather than a verbose computation on
the end and start fields.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

<smpl>
@@ struct resource ptr; @@
- (ptr.end - ptr.start + 1)
+ resource_size(&ptr)
</smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/1577900990-8588-10-git-send-email-Julia.Lawall@inria.fr
---
 arch/x86/kernel/crash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 00fc55a..fd87b59 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -370,7 +370,7 @@ int crash_setup_memmap_entries(struct kimage *image, struct boot_params *params)
 	/* Add crashk_low_res region */
 	if (crashk_low_res.end) {
 		ei.addr = crashk_low_res.start;
-		ei.size = crashk_low_res.end - crashk_low_res.start + 1;
+		ei.size = resource_size(&crashk_low_res);
 		ei.type = E820_TYPE_RAM;
 		add_e820_entry(params, &ei);
 	}