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authorNick Desaulniers <ndesaulniers@google.com>2018-08-03 10:05:50 -0700
committerThomas Gleixner <tglx@linutronix.de>2018-08-05 22:30:37 +0200
commit208cbb32558907f68b3b2a081ca2337ac3744794 (patch)
treec8338dab8426b7cc9d4442ddac9ba25a2d45600b /arch
parent1b3a62643660020cdc68e6139a010c06e8fc96c7 (diff)
download96b-common-208cbb32558907f68b3b2a081ca2337ac3744794.tar.gz
x86/irqflags: Provide a declaration for native_save_fl
It was reported that the commit d0a8d9378d16 is causing users of gcc < 4.9 to observe -Werror=missing-prototypes errors. Indeed, it seems that: extern inline unsigned long native_save_fl(void) { return 0; } compiled with -Werror=missing-prototypes produces this warning in gcc < 4.9, but not gcc >= 4.9. Fixes: d0a8d9378d16 ("x86/paravirt: Make native_save_fl() extern inline"). Reported-by: David Laight <david.laight@aculab.com> Reported-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: hpa@zytor.com Cc: jgross@suse.com Cc: kstewart@linuxfoundation.org Cc: gregkh@linuxfoundation.org Cc: boris.ostrovsky@oracle.com Cc: astrachan@google.com Cc: mka@chromium.org Cc: arnd@arndb.de Cc: tstellar@redhat.com Cc: sedat.dilek@gmail.com Cc: David.Laight@aculab.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180803170550.164688-1-ndesaulniers@google.com
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/irqflags.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index c4fc17220df9..c14f2a74b2be 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -13,6 +13,8 @@
* Interrupt control:
*/
+/* Declaration required for gcc < 4.9 to prevent -Werror=missing-prototypes */
+extern inline unsigned long native_save_fl(void);
extern inline unsigned long native_save_fl(void)
{
unsigned long flags;