linux-kernel - [PATCH 4.19 02/16] cpu/speculation: Add prototype for cpu_show

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Date:   Tue, 14 Jun 2022 20:40:03 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Borislav Petkov <bp@...e.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
Subject: [PATCH 4.19 02/16] cpu/speculation: Add prototype for cpu_show_srbds()

From: Guenter Roeck <linux@...ck-us.net>

commit 2accfa69050c2a0d6fc6106f609208b3e9622b26 upstream.

0-day is not happy that there is no prototype for cpu_show_srbds():

drivers/base/cpu.c:565:16: error: no previous prototype for 'cpu_show_srbds'

Fixes: 7e5b3c267d25 ("x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Borislav Petkov <bp@...e.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/20200617141410.93338-1-linux@roeck-us.net
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/cpu.h |    1 +
 1 file changed, 1 insertion(+)

--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -64,6 +64,7 @@ extern ssize_t cpu_show_tsx_async_abort(
 					char *buf);
 extern ssize_t cpu_show_itlb_multihit(struct device *dev,
 				      struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_srbds(struct device *dev, struct device_attribute *attr, char *buf);
 
 extern __printf(4, 5)
 struct device *cpu_device_create(struct device *parent, void *drvdata,