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>
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@ -163,7 +163,8 @@ struct kimage_arch {
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};
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};
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#endif
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#endif
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extern void (*crash_vmclear_loaded_vmcss)(void);
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typedef void crash_vmclear_fn(void);
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extern crash_vmclear_fn __rcu *crash_vmclear_loaded_vmcss;
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#endif /* __ASSEMBLY__ */
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#endif /* __ASSEMBLY__ */
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@ -38,12 +38,12 @@ int in_crash_kexec;
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*
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*
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* protected by rcu.
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* protected by rcu.
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*/
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*/
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void (*crash_vmclear_loaded_vmcss)(void) = NULL;
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crash_vmclear_fn __rcu *crash_vmclear_loaded_vmcss = NULL;
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EXPORT_SYMBOL_GPL(crash_vmclear_loaded_vmcss);
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EXPORT_SYMBOL_GPL(crash_vmclear_loaded_vmcss);
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static inline void cpu_crash_vmclear_loaded_vmcss(void)
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static inline void cpu_crash_vmclear_loaded_vmcss(void)
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{
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{
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void (*do_vmclear_operation)(void) = NULL;
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crash_vmclear_fn *do_vmclear_operation = NULL;
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rcu_read_lock();
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rcu_read_lock();
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do_vmclear_operation = rcu_dereference(crash_vmclear_loaded_vmcss);
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do_vmclear_operation = rcu_dereference(crash_vmclear_loaded_vmcss);
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