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Message-Id: <20230809130530.1913368-1-arnd@kernel.org>
Date: Wed, 9 Aug 2023 15:04:59 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>,
Josh Poimboeuf <jpoimboe@...nel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Daniel Sneddon <daniel.sneddon@...ux.intel.com>
Cc: Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] x86/speculation: add cpu_show_gds() prototype
From: Arnd Bergmann <arnd@...db.de>
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>
---
include/linux/cpu.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 9d43b734170d6..0abd60a7987b6 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -73,6 +73,8 @@ 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,
--
2.39.2
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