linux-kernel - [tip: x86/kaslr] x86/kaslr: Drop redundant variable in __process_mem

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Date:   Thu, 06 Aug 2020 23:38:58 -0000
From:   "tip-bot2 for Arvind Sankar" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Arvind Sankar <nivedita@...m.mit.edu>,
        Ingo Molnar <mingo@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/kaslr] x86/kaslr: Drop redundant variable in __process_mem_region()

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

Commit-ID:     ef7b07d59e2f18042622cecde0c7a89b60f33a89
Gitweb:        https://git.kernel.org/tip/ef7b07d59e2f18042622cecde0c7a89b60f33a89
Author:        Arvind Sankar <nivedita@...m.mit.edu>
AuthorDate:    Tue, 28 Jul 2020 18:57:09 -04:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Fri, 31 Jul 2020 11:08:17 +02:00

x86/kaslr: Drop redundant variable in __process_mem_region()

region.size can be trimmed to store the portion of the region before the
overlap, instead of a separate mem_vector variable.

Signed-off-by: Arvind Sankar <nivedita@...m.mit.edu>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lore.kernel.org/r/20200728225722.67457-9-nivedita@alum.mit.edu
---
 arch/x86/boot/compressed/kaslr.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index e978c35..8cc47fa 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -664,11 +664,8 @@ static void __process_mem_region(struct mem_vector *entry,
 
 		/* Store beginning of region if holds at least image_size. */
 		if (overlap.start >= region.start + image_size) {
-			struct mem_vector beginning;
-
-			beginning.start = region.start;
-			beginning.size = overlap.start - region.start;
-			process_gb_huge_pages(&beginning, image_size);
+			region.size = overlap.start - region.start;
+			process_gb_huge_pages(&region, image_size);
 		}
 
 		/* Return if overlap extends to or past end of region. */