This is a note to let you know that I've just added the patch titled
cciss: do not attempt to read from a write-only register
to the 2.6.33-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.33.git;a=summary
The filename of the patch is:
cciss-do-not-attempt-to-read-from-a-write-only-register.patch
and it can be found in the queue-2.6.33 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.33 longterm
tree,
please let <[email protected]> know about it.
>From 07d0c38e7d84f911c72058a124c7f17b3c779a65 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <[email protected]>
Date: Sat, 9 Jul 2011 09:04:12 +0200
Subject: cciss: do not attempt to read from a write-only register
From: "Stephen M. Cameron" <[email protected]>
commit 07d0c38e7d84f911c72058a124c7f17b3c779a65 upstream.
Most smartarrays will tolerate it, but some new ones don't.
Signed-off-by: Stephen M. Cameron <[email protected]>
Note: this is a regression caused by commit 1ddd5049
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/block/cciss.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -181,7 +181,7 @@ static void SA5_submit_command( ctlr_inf
printk("Sending %x - down to controller\n", c->busaddr );
#endif /* CCISS_DEBUG */
writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
- readl(h->vaddr + SA5_REQUEST_PORT_OFFSET);
+ readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
h->commands_outstanding++;
if ( h->commands_outstanding > h->max_outstanding)
h->max_outstanding = h->commands_outstanding;
Patches currently in longterm-queue-2.6.33 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/cciss-do-not-attempt-to-read-from-a-write-only-register.patch
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