| From 208cbb32558907f68b3b2a081ca2337ac3744794 Mon Sep 17 00:00:00 2001 |
| From: Nick Desaulniers <ndesaulniers@google.com> |
| Date: Fri, 3 Aug 2018 10:05:50 -0700 |
| Subject: x86/irqflags: Provide a declaration for native_save_fl |
| |
| From: Nick Desaulniers <ndesaulniers@google.com> |
| |
| commit 208cbb32558907f68b3b2a081ca2337ac3744794 upstream. |
| |
| 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 |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/x86/include/asm/irqflags.h | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/arch/x86/include/asm/irqflags.h |
| +++ b/arch/x86/include/asm/irqflags.h |
| @@ -12,6 +12,8 @@ |
| * 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; |
