This is a note to let you know that I've just added the patch titled
rtl8xxxu: Fix rtl8723bu driver reload issue
to the 4.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtl8xxxu-fix-rtl8723bu-driver-reload-issue.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ab05e5ec81c76f3a852919c22984c885edd2414a Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Date: Fri, 30 Sep 2016 19:35:17 -0400
Subject: rtl8xxxu: Fix rtl8723bu driver reload issue
From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
commit ab05e5ec81c76f3a852919c22984c885edd2414a upstream.
The generic disable_rf() function clears bits 22 and 23 in
REG_RX_WAIT_CCA, however we did not re-enable them again in
rtl8723b_enable_rf()
This resolves the problem for me with 8723bu devices not working again
after reloading the driver.
Signed-off-by: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
@@ -1498,6 +1498,10 @@ static void rtl8723b_enable_rf(struct rt
u32 val32;
u8 val8;
+ val32 = rtl8xxxu_read32(priv, REG_RX_WAIT_CCA);
+ val32 |= (BIT(22) | BIT(23));
+ rtl8xxxu_write32(priv, REG_RX_WAIT_CCA, val32);
+
/*
* No indication anywhere as to what 0x0790 does. The 2 antenna
* vendor code preserves bits 6-7 here.
Patches currently in stable-queue which might be from Jes.Sorensen@xxxxxxxxxx are
queue-4.8/rtl8xxxu-fix-memory-leak-in-handling-rxdesc16-packets.patch
queue-4.8/rtl8xxxu-fix-big-endian-problem-reporting-mactime.patch
queue-4.8/rtl8xxxu-fix-rtl8723bu-driver-reload-issue.patch
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