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Message-ID: <169171015127.27769.17078494858704021692.tip-bot2@tip-bot2>
Date:   Thu, 10 Aug 2023 23:29:11 -0000
From:   "tip-bot2 for Arnd Bergmann" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Daniel Sneddon <daniel.sneddon@...ux.intel.com>,
        stable@...nel.org, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/bugs] x86/speculation: Add cpu_show_gds() prototype

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

Commit-ID:     a57c27c7ad85c420b7de44c6ee56692d51709dda
Gitweb:        https://git.kernel.org/tip/a57c27c7ad85c420b7de44c6ee56692d51709dda
Author:        Arnd Bergmann <arnd@...db.de>
AuthorDate:    Wed, 09 Aug 2023 15:04:59 +02:00
Committer:     Dave Hansen <dave.hansen@...ux.intel.com>
CommitterDate: Thu, 10 Aug 2023 09:12:18 -07:00

x86/speculation: Add cpu_show_gds() prototype

The newly added function has two definitions but no prototypes:

drivers/base/cpu.c:605:16: error: no previous prototype for 'cpu_show_gds' [-Werror=missing-prototypes]

Add a declaration next to the other ones for this file to avoid the
warning.

Fixes: 8974eb588283b ("x86/speculation: Add Gather Data Sampling mitigation")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>
Tested-by: Daniel Sneddon <daniel.sneddon@...ux.intel.com>
Cc: stable@...nel.org
Link: https://lore.kernel.org/all/20230809130530.1913368-1-arnd%40kernel.org
---
 include/linux/cpu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 23ac87b..e006c71 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -72,6 +72,8 @@ extern ssize_t cpu_show_retbleed(struct device *dev,
 				 struct device_attribute *attr, char *buf);
 extern ssize_t cpu_show_spec_rstack_overflow(struct device *dev,
 					     struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_gds(struct device *dev,
+			    struct device_attribute *attr, char *buf);
 
 extern __printf(4, 5)
 struct device *cpu_device_create(struct device *parent, void *drvdata,

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