This is a note to let you know that I've just added the patch titled
MIPS: ralink: Fix clearing the illegal access interrupt
to the 4.0-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:
mips-ralink-fix-clearing-the-illegal-access-interrupt.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9dd6f1c166bc6e7b582f6203f2dc023ec65e3ed5 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@xxxxxxxxxxx>
Date: Mon, 25 May 2015 19:53:54 +0200
Subject: MIPS: ralink: Fix clearing the illegal access interrupt
From: Jonas Gorski <jogo@xxxxxxxxxxx>
commit 9dd6f1c166bc6e7b582f6203f2dc023ec65e3ed5 upstream.
Due to a typo the illegal access interrupt is never cleared in by
the interupt handler, causing an effective deadlock on the first
illegal access.
This was broken since the code was introduced in 5433acd81e87 ("MIPS:
ralink: add illegal access driver"), but only exposed when the Kconfig
symbol was added, thus enabling the code.
Fixes: a7b7aad383c ("MIPS: ralink: add missing symbol for RALINK_ILL_ACC")
Signed-off-by: Jonas Gorski <jogo@xxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: John Crispin <blogic@xxxxxxxxxxx>
Patchwork: https://patchwork.linux-mips.org/patch/10172/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/ralink/ill_acc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/ralink/ill_acc.c
+++ b/arch/mips/ralink/ill_acc.c
@@ -41,7 +41,7 @@ static irqreturn_t ill_acc_irq_handler(i
addr, (type >> ILL_ACC_OFF_S) & ILL_ACC_OFF_M,
type & ILL_ACC_LEN_M);
- rt_memc_w32(REG_ILL_ACC_TYPE, REG_ILL_ACC_TYPE);
+ rt_memc_w32(ILL_INT_STATUS, REG_ILL_ACC_TYPE);
return IRQ_HANDLED;
}
Patches currently in stable-queue which might be from jogo@xxxxxxxxxxx are
queue-4.0/mips-ralink-fix-clearing-the-illegal-access-interrupt.patch
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