linux-kernel - [PATCH 3.2 054/185] x86/microcode/amd: Tone down printk(), don't treat a missing firmware file as an error

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Message-ID: <lsq.1388282923.401281102@decadent.org.uk>
Date:	Sun, 29 Dec 2013 03:08:43 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Ingo Molnar" <mingo@...nel.org>,
	"Thomas Renninger" <trenn@...e.de>, "Borislav Petkov" <bp@...e.de>
Subject: [PATCH 3.2 054/185] x86/microcode/amd: Tone down printk(), don't
 treat a missing firmware file as an error

3.2.54-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Renninger <trenn@...e.de>

commit 11f918d3e2d3861b6931e97b3aa778e4984935aa upstream.

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@...e.de>
Acked-by: Borislav Petkov <bp@...e.de>
Link: http://lkml.kernel.org/r/1384274383-43510-1-git-send-email-trenn@suse.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/x86/kernel/microcode_amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -331,7 +331,7 @@ static enum ucode_state request_microcod
 		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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