[PATCH] rtl8xxxu: Don't printk raw binary if serial number is not burned in.
From: Adam Borowski <hidden>
Date: 2017-09-07 23:51:16
Also in:
netdev
Subsystem:
rtl8xxxu wireless driver (rtl8xxxu), the rest · Maintainers:
Jes Sorensen, Linus Torvalds
I assume that a blank efuse comes with all ones, thus I did not bother recognizing other possible junk values. This matches 100% of dongles I've seen (a single Gembird 8192eu). Signed-off-by: Adam Borowski <redacted> --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
index 80fee699f58a..bdc37e7272ca 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c@@ -614,7 +614,11 @@ static int rtl8192eu_parse_efuse(struct rtl8xxxu_priv *priv) dev_info(&priv->udev->dev, "Vendor: %.7s\n", efuse->vendor_name); dev_info(&priv->udev->dev, "Product: %.11s\n", efuse->device_name); - dev_info(&priv->udev->dev, "Serial: %.11s\n", efuse->serial); + if (strncmp(efuse->serial, + "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff", 11)) + dev_info(&priv->udev->dev, "Serial: %.11s\n", efuse->serial); + else + dev_info(&priv->udev->dev, "Serial not available.\n"); if (rtl8xxxu_debug & RTL8XXXU_DEBUG_EFUSE) { unsigned char *raw = priv->efuse_wifi.raw;
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2.14.1