diff options
| author | Adam Borowski <kilobyte@angband.pl> | 2017-09-08 13:30:00 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-09-25 11:24:05 +0300 |
| commit | e0a576d7478230aaf51c479db57a2c5ce68e2575 (patch) | |
| tree | e29ae7006b7296693378ac950b65e416be906833 | |
| parent | d5633bb2c62a95be5f049ee1e7b9ae0869a93c41 (diff) | |
| download | linux-e0a576d7478230aaf51c479db57a2c5ce68e2575.tar.xz | |
rtl8xxxu: Don't printk raw binary if serial number is not burned in.
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 <kilobyte@angband.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c index 80fee699f58a..38b2ba1ac6f8 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c @@ -614,7 +614,10 @@ 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 (memchr_inv(efuse->serial, 0xff, 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; |