linux-kernel - [tip: objtool/core] objtool: Optimize layout of struct special

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Date:   Wed, 01 Feb 2023 16:26:32 -0000
From:   tip-bot2 for Thomas Weißschuh 
        <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     linux@...ssschuh.net, Josh Poimboeuf <jpoimboe@...nel.org>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: objtool/core] objtool: Optimize layout of struct special_alt

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     391e6d2abd652b460d9017b2f8a8ded508c09558
Gitweb:        https://git.kernel.org/tip/391e6d2abd652b460d9017b2f8a8ded508c09558
Author:        Thomas Weißschuh <linux@...ssschuh.net>
AuthorDate:    Tue, 27 Dec 2022 16:01:03 
Committer:     Josh Poimboeuf <jpoimboe@...nel.org>
CommitterDate: Mon, 30 Jan 2023 16:28:20 -08:00

objtool: Optimize layout of struct special_alt

Reduce the size of struct special_alt from 72 to 64 bytes.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
Link: https://lore.kernel.org/r/20221216-objtool-memory-v2-7-17968f85a464@weissschuh.net
Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
---
 tools/objtool/include/objtool/special.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/objtool/include/objtool/special.h b/tools/objtool/include/objtool/special.h
index dc4721e..86d4af9 100644
--- a/tools/objtool/include/objtool/special.h
+++ b/tools/objtool/include/objtool/special.h
@@ -19,6 +19,7 @@ struct special_alt {
 	bool skip_orig;
 	bool skip_alt;
 	bool jump_or_nop;
+	u8 key_addend;
 
 	struct section *orig_sec;
 	unsigned long orig_off;
@@ -27,7 +28,6 @@ struct special_alt {
 	unsigned long new_off;
 
 	unsigned int orig_len, new_len; /* group only */
-	u8 key_addend;
 };
 
 int special_get_alts(struct elf *elf, struct list_head *alts);