When build with !CONFIG_MMU, the variable 'vmcore_mmap_ops'
is defined but not used:
>> fs/proc/vmcore.c:458:42: warning: unused variable 'vmcore_mmap_ops'
458 | static const struct vm_operations_struct vmcore_mmap_ops = {
Fix this by declaring it __maybe_unused.
Fixes: 9cb218131de1 ("vmcore: introduce remap_oldmem_pfn_range()")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Qi Xi <[email protected]>
---
fs/proc/vmcore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 1fb213f379a5..9651f105c25b 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -455,7 +455,7 @@ static vm_fault_t mmap_vmcore_fault(struct vm_fault *vmf)
#endif
}
-static const struct vm_operations_struct vmcore_mmap_ops = {
+static const struct vm_operations_struct __maybe_unused vmcore_mmap_ops = {
.fault = mmap_vmcore_fault,
};
--
2.33.0
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