diff options
| author | Zhang Yanfei <zhangyanfei@cn.fujitsu.com> | 2012-12-11 17:11:34 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-12-11 19:55:23 -0200 |
| commit | 0ca0d818cbcbcac75a02833861b6fc42a98b904e (patch) | |
| tree | 4cfaaa33cb3dcf860bd60a5b4559eb19ef777a08 /arch/x86 | |
| parent | 49f8a1a5394d8baee5e56fb71e5cf993c228689a (diff) | |
| download | linux-0ca0d818cbcbcac75a02833861b6fc42a98b904e.tar.bz2 | |
x86/kexec: crash_vmclear_local_vmcss needs __rcu
This removes the sparse warning:
arch/x86/kernel/crash.c:49:32: sparse: incompatible types in comparison expression (different address spaces)
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/kexec.h | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/crash.c | 4 |
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index 28feeba2fdd6..6080d2694bad 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -163,7 +163,8 @@ struct kimage_arch { }; #endif -extern void (*crash_vmclear_loaded_vmcss)(void); +typedef void crash_vmclear_fn(void); +extern crash_vmclear_fn __rcu *crash_vmclear_loaded_vmcss; #endif /* __ASSEMBLY__ */ diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index 2f6b8e838d18..74467feb4dc5 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -38,12 +38,12 @@ int in_crash_kexec; * * protected by rcu. */ -void (*crash_vmclear_loaded_vmcss)(void) = NULL; +crash_vmclear_fn __rcu *crash_vmclear_loaded_vmcss = NULL; EXPORT_SYMBOL_GPL(crash_vmclear_loaded_vmcss); static inline void cpu_crash_vmclear_loaded_vmcss(void) { - void (*do_vmclear_operation)(void) = NULL; + crash_vmclear_fn *do_vmclear_operation = NULL; rcu_read_lock(); do_vmclear_operation = rcu_dereference(crash_vmclear_loaded_vmcss); |