linux-kernel - [PATCH] percpu: Fix raw_cpu_inc

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Message-ID: <20140417174334.GA20303@linux.vnet.ibm.com>
Date:	Thu, 17 Apr 2014 10:43:34 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org, tj@...nel.org
Cc:	cl@...ux.com, mingo@...nel.org, grygorii.strashko@...com,
	peterz@...radead.org
Subject: [PATCH] percpu: Fix raw_cpu_inc_return()

This patch fixes a build bug triggered by one of the RCU commits
queued for 3.16.

The definition for raw_cpu_add_return() uses the operation prefix
"raw_add_return_", but the definitions in the various percpu.h files
expect "raw_cpu_add_return_".  This commit therefore appropriately
adjusts the definition of raw_cpu_add_return().

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Acked-by: Christoph Lameter <cl@...ux.com>

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index e7a0b95ed527..495c6543a8f2 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -639,7 +639,7 @@ do {									\
 #  define raw_cpu_add_return_8(pcp, val)	raw_cpu_generic_add_return(pcp, val)
 # endif
 # define raw_cpu_add_return(pcp, val)	\
-	__pcpu_size_call_return2(raw_add_return_, pcp, val)
+	__pcpu_size_call_return2(raw_cpu_add_return_, pcp, val)
 #endif
 
 #define raw_cpu_sub_return(pcp, val)	raw_cpu_add_return(pcp, -(typeof(pcp))(val))

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