From: Simon Glass <sjg@chromium.org>
Date: Sun, 17 Jan 2016 23:11:29 +0000 (-0700)
Subject: x86: Don't show an error when the MRC cache is up to date
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=8b674418e0250aae9748d9b53fe4c9d9607b7e36;p=u-boot.git

x86: Don't show an error when the MRC cache is up to date

When the final MRC cache record is the same as the one we want to write, we
skip writing since there is no point. This is normal behaviour.

Avoiding printing an error when this happens.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

diff --git a/arch/x86/lib/mrccache.c b/arch/x86/lib/mrccache.c
index 53a1259d09..67bace4f40 100644
--- a/arch/x86/lib/mrccache.c
+++ b/arch/x86/lib/mrccache.c
@@ -243,8 +243,12 @@ int mrccache_save(void)
 		goto err_entry;
 	data  = (struct mrc_data_container *)gd->arch.mrc_output;
 	ret = mrccache_update(sf, &entry, data);
-	if (!ret)
+	if (!ret) {
 		debug("Saved MRC data with checksum %04x\n", data->checksum);
+	} else if (ret == -EEXIST) {
+		debug("MRC data is the same as last time, skipping save\n");
+		ret = 0;
+	}
 
 err_entry:
 	if (ret)