diff mbox

[3/7] atomic: Silence nested-externs warnings

Message ID 20140919204303.GF2832@worktop.localdomain (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Peter Zijlstra Sept. 19, 2014, 8:43 p.m. UTC 
On Fri, Sep 19, 2014 at 08:29:36AM -0700, Jeff Kirsher wrote:
> From: Mark Rustad <mark.d.rustad@intel.com>
> 
> Silence the nested-externs warnings for these, as they are
> truly wanted.
> 

You're patching an old tree.

---
commit 2e39465abc4b7856a0ea6fcf4f6b4668bb5db877
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Mon Aug 4 12:07:15 2014 +0200

    locking: Remove deprecated smp_mb__() barriers
    
    Its been a while and there are no in-tree users left, so remove the
    deprecated barriers.
    
    Signed-off-by: Peter Zijlstra <peterz@infradead.org>
    Cc: Chen, Gong <gong.chen@linux.intel.com>
    Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
    Cc: Joe Perches <joe@perches.com>
    Cc: John Sullivan <jsrhbz@kanargh.force9.co.uk>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
    Cc: Theodore Ts'o <tytso@mit.edu>
    Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Comments

Kirsher, Jeffrey T Sept. 19, 2014, 8:53 p.m. UTC | #1 
On Fri, 2014-09-19 at 22:43 +0200, Peter Zijlstra wrote:
> On Fri, Sep 19, 2014 at 08:29:36AM -0700, Jeff Kirsher wrote:
> > From: Mark Rustad <mark.d.rustad@intel.com>
> > 
> > Silence the nested-externs warnings for these, as they are
> > truly wanted.
> > 
> 
> You're patching an old tree.

Sorry, I used Linus's latest tree (as of last night) because of number
of the patches in the series went to various trees, so I used Linus's
tree.

> 
> ---
> commit 2e39465abc4b7856a0ea6fcf4f6b4668bb5db877
> Author: Peter Zijlstra <peterz@infradead.org>
> Date:   Mon Aug 4 12:07:15 2014 +0200
> 
>     locking: Remove deprecated smp_mb__() barriers
>     
>     Its been a while and there are no in-tree users left, so remove the
>     deprecated barriers.
>     
>     Signed-off-by: Peter Zijlstra <peterz@infradead.org>
>     Cc: Chen, Gong <gong.chen@linux.intel.com>
>     Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
>     Cc: Joe Perches <joe@perches.com>
>     Cc: John Sullivan <jsrhbz@kanargh.force9.co.uk>
>     Cc: Linus Torvalds <torvalds@linux-foundation.org>
>     Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>     Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
>     Cc: Theodore Ts'o <tytso@mit.edu>
>     Signed-off-by: Ingo Molnar <mingo@kernel.org>
> 
> diff --git a/include/linux/atomic.h b/include/linux/atomic.h
> index fef3a80..5b08a85 100644
> --- a/include/linux/atomic.h
> +++ b/include/linux/atomic.h
> @@ -3,42 +3,6 @@
>  #define _LINUX_ATOMIC_H
>  #include <asm/atomic.h>
>  
> -/*
> - * Provide __deprecated wrappers for the new interface, avoid flag day changes.
> - * We need the ugly external functions to break header recursion hell.
> - */
> -#ifndef smp_mb__before_atomic_inc
> -static inline void __deprecated smp_mb__before_atomic_inc(void)
> -{
> -	extern void __smp_mb__before_atomic(void);
> -	__smp_mb__before_atomic();
> -}
> -#endif
> -
> -#ifndef smp_mb__after_atomic_inc
> -static inline void __deprecated smp_mb__after_atomic_inc(void)
> -{
> -	extern void __smp_mb__after_atomic(void);
> -	__smp_mb__after_atomic();
> -}
> -#endif
> -
> -#ifndef smp_mb__before_atomic_dec
> -static inline void __deprecated smp_mb__before_atomic_dec(void)
> -{
> -	extern void __smp_mb__before_atomic(void);
> -	__smp_mb__before_atomic();
> -}
> -#endif
> -
> -#ifndef smp_mb__after_atomic_dec
> -static inline void __deprecated smp_mb__after_atomic_dec(void)
> -{
> -	extern void __smp_mb__after_atomic(void);
> -	__smp_mb__after_atomic();
> -}
> -#endif
> -
>  /**
>   * atomic_add_unless - add unless the number is already a given value
>   * @v: pointer of type atomic_t
> diff --git a/include/linux/bitops.h b/include/linux/bitops.h
> index cbc5833..be5fd38 100644
> --- a/include/linux/bitops.h
> +++ b/include/linux/bitops.h
> @@ -32,26 +32,6 @@ extern unsigned long __sw_hweight64(__u64 w);
>   */
>  #include <asm/bitops.h>
>  
> -/*
> - * Provide __deprecated wrappers for the new interface, avoid flag day changes.
> - * We need the ugly external functions to break header recursion hell.
> - */
> -#ifndef smp_mb__before_clear_bit
> -static inline void __deprecated smp_mb__before_clear_bit(void)
> -{
> -	extern void __smp_mb__before_atomic(void);
> -	__smp_mb__before_atomic();
> -}
> -#endif
> -
> -#ifndef smp_mb__after_clear_bit
> -static inline void __deprecated smp_mb__after_clear_bit(void)
> -{
> -	extern void __smp_mb__after_atomic(void);
> -	__smp_mb__after_atomic();
> -}
> -#endif
> -
>  #define for_each_set_bit(bit, addr, size) \
>  	for ((bit) = find_first_bit((addr), (size));		\
>  	     (bit) < (size);					\
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 1211575..76c518c 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -90,22 +90,6 @@
>  #define CREATE_TRACE_POINTS
>  #include <trace/events/sched.h>
>  
> -#ifdef smp_mb__before_atomic
> -void __smp_mb__before_atomic(void)
> -{
> -	smp_mb__before_atomic();
> -}
> -EXPORT_SYMBOL(__smp_mb__before_atomic);
> -#endif
> -
> -#ifdef smp_mb__after_atomic
> -void __smp_mb__after_atomic(void)
> -{
> -	smp_mb__after_atomic();
> -}
> -EXPORT_SYMBOL(__smp_mb__after_atomic);
> -#endif
> -
>  void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
>  {
>  	unsigned long delta;
diff mbox

Patch

diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index fef3a80..5b08a85 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -3,42 +3,6 @@ 
 #define _LINUX_ATOMIC_H
 #include <asm/atomic.h>
 
-/*
- * Provide __deprecated wrappers for the new interface, avoid flag day changes.
- * We need the ugly external functions to break header recursion hell.
- */
-#ifndef smp_mb__before_atomic_inc
-static inline void __deprecated smp_mb__before_atomic_inc(void)
-{
-	extern void __smp_mb__before_atomic(void);
-	__smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_atomic_inc
-static inline void __deprecated smp_mb__after_atomic_inc(void)
-{
-	extern void __smp_mb__after_atomic(void);
-	__smp_mb__after_atomic();
-}
-#endif
-
-#ifndef smp_mb__before_atomic_dec
-static inline void __deprecated smp_mb__before_atomic_dec(void)
-{
-	extern void __smp_mb__before_atomic(void);
-	__smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_atomic_dec
-static inline void __deprecated smp_mb__after_atomic_dec(void)
-{
-	extern void __smp_mb__after_atomic(void);
-	__smp_mb__after_atomic();
-}
-#endif
-
 /**
  * atomic_add_unless - add unless the number is already a given value
  * @v: pointer of type atomic_t
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index cbc5833..be5fd38 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -32,26 +32,6 @@  extern unsigned long __sw_hweight64(__u64 w);
  */
 #include <asm/bitops.h>
 
-/*
- * Provide __deprecated wrappers for the new interface, avoid flag day changes.
- * We need the ugly external functions to break header recursion hell.
- */
-#ifndef smp_mb__before_clear_bit
-static inline void __deprecated smp_mb__before_clear_bit(void)
-{
-	extern void __smp_mb__before_atomic(void);
-	__smp_mb__before_atomic();
-}
-#endif
-
-#ifndef smp_mb__after_clear_bit
-static inline void __deprecated smp_mb__after_clear_bit(void)
-{
-	extern void __smp_mb__after_atomic(void);
-	__smp_mb__after_atomic();
-}
-#endif
-
 #define for_each_set_bit(bit, addr, size) \
 	for ((bit) = find_first_bit((addr), (size));		\
 	     (bit) < (size);					\
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1211575..76c518c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -90,22 +90,6 @@ 
 #define CREATE_TRACE_POINTS
 #include <trace/events/sched.h>
 
-#ifdef smp_mb__before_atomic
-void __smp_mb__before_atomic(void)
-{
-	smp_mb__before_atomic();
-}
-EXPORT_SYMBOL(__smp_mb__before_atomic);
-#endif
-
-#ifdef smp_mb__after_atomic
-void __smp_mb__after_atomic(void)
-{
-	smp_mb__after_atomic();
-}
-EXPORT_SYMBOL(__smp_mb__after_atomic);
-#endif
-
 void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
 {
 	unsigned long delta;