Patch "irqchip/gicv3: Handle loop timeout proper" has been added to the 4.4-stable tree
From: <gregkh@linuxfoundation.org>
Date: 2016-10-26 09:27:02
This is a note to let you know that I've just added the patch titled
irqchip/gicv3: Handle loop timeout proper
to the 4.4-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:
irqchip-gicv3-handle-loop-timeout-proper.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let [off-list ref] know about it.
From d102eb5c1ac5e6743b1c6d145c06a25d98ad1375 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <redacted>
Date: Fri, 14 Oct 2016 10:26:21 +0300
Subject: irqchip/gicv3: Handle loop timeout proper
From: Dan Carpenter <redacted>
commit d102eb5c1ac5e6743b1c6d145c06a25d98ad1375 upstream.
The timeout loop terminates when the loop count is zero, but the decrement
of the count variable is post check. So count is -1 when we check for the
timeout and therefor the error message is supressed.
Change it to predecrement, so the error message is emitted.
[ tglx: Massaged changelog ]
Fixes: a2c225101234 ("irqchip: gic-v3: Refactor gic_enable_redist to support both enabling and disabling")
Signed-off-by: Dan Carpenter <redacted>
Acked-by: Sudeep Holla <redacted>
Cc: Marc Zyngier <redacted>
Cc: kernel-janitors@vger.kernel.org
Cc: Jason Cooper <redacted>
Link: http://lkml.kernel.org/r/20161014072534.GA15168@mwanda
Signed-off-by: Thomas Gleixner <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/irqchip/irq-gic-v3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c@@ -142,7 +142,7 @@ static void gic_enable_redist(bool enabl return; /* No PM support in this redistributor */ } - while (count--) { + while (--count) { val = readl_relaxed(rbase + GICR_WAKER); if (enable ^ (val & GICR_WAKER_ChildrenAsleep)) break;
Patches currently in stable-queue which might be from dan.carpenter@oracle.com are queue-4.4/scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch queue-4.4/irqchip-gicv3-handle-loop-timeout-proper.patch