From: Sven Joachim <svenjoac@gmx.de>
To: Larry Finger <Larry.Finger@lwfinger.net>, linux-wireless@vger.kernel.org
Cc: Ping-Ke Shih <pkshih@realtek.com>, Kalle Valo <kvalo@codeaurora.org>
Subject: Loading fallback firmware in rtl8723be and rtl8821ae fails
Date: Fri, 28 Jul 2017 13:14:37 +0200 [thread overview]
Message-ID: <87k22sq0de.fsf@turtle.gmx.de> (raw)
After upgrading my laptop to kernel 4.12 I found that the firmware for
my WiFi card was no longer loaded, rendering the WiFi non-functional.
In the dmesg are (only) these related lines:
[ 6.854609] rtl8723be: Using firmware rtlwifi/rtl8723befw_36.bin
[ 6.854990] rtl8723be 0000:02:00.0: Direct firmware load for rtlwifi/rtl8723befw_36.bin failed with error -2
[ 6.854993] rtlwifi: Selected firmware is not available
Now, by commit f70e4df2b384d21e36a7c30a591639592692e0ec ("Add code to
read new versions of firmware"), supposedly rtlwifi/rtl8723befw.bin
should be loaded if rtlwifi/rtl8723befw_36.bin is not available, but
that does not actually work.
AFAICS the problem is that request_firmware_nowait() does not wait for
the firmware to show up and returns 0 even if the file is not there, so
the code to load the fallback file will never be reached.
Cheers,
Sven
next reply other threads:[~2017-07-28 11:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-28 11:14 Sven Joachim [this message]
2017-07-29 9:21 ` [PATCH] rtlwifi: Fix fallback firmware loading Sven Joachim
2017-07-30 23:57 ` Larry Finger
2017-07-31 16:10 ` [PATCH v2] " Sven Joachim
2017-08-03 9:36 ` [v2] " Kalle Valo
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