vmcore: quiet zero PT_NOTE warning

When creating a crashdump, this warning shows up on the console
for every offline cpu:

Warning: Zero PT_NOTE entries found

For an ldom, every possible inactive cpu shows up as offline, so let's
just print the warning once.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 4e61388ec03d2af3a426bb788f2382f4f27db1aa..484c2014a2fb3ab9ca5ca0cdd6eb4e81cc0b7056 100644 (file)
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -559,7 +559,7 @@ static int __init update_note_header_size_elf64(const Elf64_Ehdr *ehdr_ptr)
                kfree(notes_section);
                phdr_ptr->p_memsz = real_sz;
                if (real_sz == 0) {
-                       pr_warn("Warning: Zero PT_NOTE entries found\n");
+                       pr_warn_once("Warning: Zero PT_NOTE entries found\n");
                }
        }