linux-kernel - [PATCH 5/7] signal: Silence nested-externs warnings

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Message-Id: <1411140580-20909-6-git-send-email-jeffrey.t.kirsher@intel.com>
Date:	Fri, 19 Sep 2014 08:29:38 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	sparse@...isli.org
Cc:	Mark Rustad <mark.d.rustad@...el.com>,
	linux-sparse@...r.kernel.org, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Richard Weinberger <richard@....at>,
	Brian Norris <computersforpeace@...il.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [PATCH 5/7] signal: Silence nested-externs warnings

From: Mark Rustad <mark.d.rustad@...el.com>

Silence nested-externs warnings for these, as these nested
externs are truly wanted.

CC: Oleg Nesterov <oleg@...hat.com>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: Geert Uytterhoeven <geert@...ux-m68k.org>
CC: Richard Weinberger <richard@....at>
CC: Brian Norris <computersforpeace@...il.com>
Signed-off-by: Mark Rustad <mark.d.rustad@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 include/linux/signal.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 750196f..e68ae6b 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -67,7 +67,9 @@ static inline int sigismember(sigset_t *set, int _sig)
 
 static inline int sigisemptyset(sigset_t *set)
 {
+	DIAG_PUSH DIAG_IGNORE(nested-externs)
 	extern void _NSIG_WORDS_is_unsupported_size(void);
+	DIAG_POP
 	switch (_NSIG_WORDS) {
 	case 4:
 		return (set->sig[3] | set->sig[2] |
@@ -90,7 +92,9 @@ static inline int sigisemptyset(sigset_t *set)
 #define _SIG_SET_BINOP(name, op)					\
 static inline void name(sigset_t *r, const sigset_t *a, const sigset_t *b) \
 {									\
+	DIAG_PUSH DIAG_IGNORE(nested-externs)				\
 	extern void _NSIG_WORDS_is_unsupported_size(void);		\
+	DIAG_POP							\
 	unsigned long a0, a1, a2, a3, b0, b1, b2, b3;			\
 									\
 	switch (_NSIG_WORDS) {						\
@@ -128,7 +132,9 @@ _SIG_SET_BINOP(sigandnsets, _sig_andn)
 #define _SIG_SET_OP(name, op)						\
 static inline void name(sigset_t *set)					\
 {									\
+	DIAG_PUSH DIAG_IGNORE(nested-externs)				\
 	extern void _NSIG_WORDS_is_unsupported_size(void);		\
+	DIAG_POP							\
 									\
 	switch (_NSIG_WORDS) {						\
 	    case 4: set->sig[3] = op(set->sig[3]);			\
-- 
1.9.3

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