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From: Arnd Bergmann <arnd@arndb.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] kallsyms: fix building without printk
Date: Mon, 13 Nov 2017 17:50:59 +0100	[thread overview]
Message-ID: <20171113165146.2287420-1-arnd@arndb.de> (raw)

Building kallsyms fails without CONFIG_PRINTK due to a missing
declaration:

kernel/kallsyms.c: In function 'kallsyms_show_value':
kernel/kallsyms.c:670:10: error: 'kptr_restrict' undeclared (first use in this function); did you mean 'keyring_restrict'?

This moves the declaration outside of the #ifdef guard, the definition
is already available without CONFIG_PRINTK.

Fixes: c0f3ea158939 ("stop using '%pK' for /proc/kallsyms pointer values")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 include/linux/printk.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index fbb75cac9028..e9b603ee9953 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -187,7 +187,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 
 extern int printk_delay_msec;
 extern int dmesg_restrict;
-extern int kptr_restrict;
 
 extern int
 devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, void __user *buf,
@@ -278,6 +277,8 @@ static inline void printk_safe_flush_on_panic(void)
 }
 #endif
 
+extern int kptr_restrict;
+
 extern asmlinkage void dump_stack(void) __cold;
 
 #ifndef pr_fmt
-- 
2.9.0

             reply	other threads:[~2017-11-13 16:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-13 16:50 Arnd Bergmann [this message]
2017-11-13 16:51 ` [PATCH 2/2] /proc/module: fix building without kallsyms Arnd Bergmann
2017-11-14  1:28 ` [PATCH 1/2] kallsyms: fix building without printk Sergey Senozhatsky

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