[tip:x86/urgent] x86/microcode/amd: Tone down printk(), don't treat a missing firmware file as an error

[tip-bot for Thomas Renninger]

Commit-ID:  11f918d3e2d3861b6931e97b3aa778e4984935aa
Gitweb:     http://git.kernel.org/tip/11f918d3e2d3861b6931e97b3aa778e4984935aa
Author:     Thomas Renninger <trenn@xxxxxxx>
AuthorDate: Tue, 12 Nov 2013 17:39:43 +0100
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 12 Nov 2013 22:03:49 +0100

x86/microcode/amd: Tone down printk(), don't treat a missing firmware file as an error

Do it the same way as done in microcode_intel.c: use pr_debug()
for missing firmware files.

There seem to be CPUs out there for which no microcode update
has been submitted to kernel-firmware repo yet resulting in
scary sounding error messages in dmesg:

  microcode: failed to load file amd-ucode/microcode_amd_fam16h.bin

Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
Acked-by: Borislav Petkov <bp@xxxxxxx>
Cc: <stable@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1384274383-43510-1-git-send-email-trenn@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/kernel/microcode_amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index af99f71..c3d4cc9 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -431,7 +431,7 @@ static enum ucode_state request_microcode_amd(int cpu, struct device *device,
 		snprintf(fw_name, sizeof(fw_name), "amd-ucode/microcode_amd_fam%.2xh.bin", c->x86);
 
 	if (request_firmware(&fw, (const char *)fw_name, device)) {
-		pr_err("failed to load file %s\n", fw_name);
+		pr_debug("failed to load file %s\n", fw_name);
 		goto out;
 	}
 
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