linux-kernel - [PATCH 2/2] mux: Slightly reorder 'struct mux

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 26 Nov 2023 09:08:12 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Peter Rosin <peda@...ntia.se>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 2/2] mux: Slightly reorder 'struct mux_chip'

Based on pahole, 2 holes can be combined in the 'struct mux_chip'. This
saves 8 bytes in the structure on my x86_64.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 include/linux/mux/driver.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mux/driver.h b/include/linux/mux/driver.h
index c29e9b7fb17b..09d519af521b 100644
--- a/include/linux/mux/driver.h
+++ b/include/linux/mux/driver.h
@@ -56,15 +56,15 @@ struct mux_control {
 /**
  * struct mux_chip -	Represents a chip holding mux controllers.
  * @controllers:	Number of mux controllers handled by the chip.
- * @dev:		Device structure.
  * @id:			Used to identify the device internally.
+ * @dev:		Device structure.
  * @ops:		Mux controller operations.
  * @mux:		Array of mux controllers that are handled.
  */
 struct mux_chip {
 	unsigned int controllers;
-	struct device dev;
 	int id;
+	struct device dev;
 
 	const struct mux_control_ops *ops;
 
-- 
2.34.1