Pstore only supports one backend at a time. The preferred
pstore backend is set by passing the pstore.backend=<name>
argument to the kernel at boot time. Currently, while trying
to register with pstore, nvram throws an error message even
when "pstore.backend != nvram", which is unnecessary. This
patch removes the error message in case "pstore.backend != nvram".
Signed-off-by: Hari Bathini <hbath...@linux.vnet.ibm.com>
---
arch/powerpc/kernel/nvram_64.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 1e703f8..bfdbcab 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -582,9 +582,10 @@ static int nvram_pstore_init(void)
spin_lock_init(&nvram_pstore_info.buf_lock);
rc = pstore_register(&nvram_pstore_info);
- if (rc != 0)
- pr_err("nvram: pstore_register() failed, defaults to "
- "kmsg_dump; returned %d\n", rc);
+ if (rc && (rc != -EPERM))
+ /* Print error only when pstore.backend == nvram */
+ pr_err("nvram: pstore_register() failed, returned %d. "
+ "Defaults to kmsg_dump\n", rc);
return rc;
}
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