From: Sasha Levin <sashal@kernel.org>
To: gregkh@linuxfoundation.org
Cc: Meng.Li@windriver.com, bp@suse.de, james.morse@arm.com,
linux-edac@vger.kernel.org, mchehab@kernel.org,
rrichter@marvell.com, stable@vger.kernel.org,
thor.thayer@linux.intel.com, tony.luck@intel.com
Subject: Re: FAILED: patch "[PATCH] EDAC/altera: Use fast register IO for S10 IRQs" failed to apply to 4.19-stable tree
Date: Sun, 15 Dec 2019 13:27:06 -0500 [thread overview]
Message-ID: <20191215182706.GL18043@sasha-vm> (raw)
In-Reply-To: <1576407196157167@kroah.com>
On Sun, Dec 15, 2019 at 11:53:16AM +0100, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 4.19-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 56d9e7bd3fa0f105b6670021d167744bc50ae4fe Mon Sep 17 00:00:00 2001
>From: Meng Li <Meng.Li@windriver.com>
>Date: Thu, 21 Nov 2019 12:30:46 -0600
>Subject: [PATCH] EDAC/altera: Use fast register IO for S10 IRQs
>
>When an IRQ occurs, regmap_{read,write,...}() is invoked in atomic
>context. Regmap must indicate register IO is fast so that a spinlock is
>used instead of a mutex to avoid sleeping in atomic context:
>
> lock_acquire
> __mutex_lock
> mutex_lock_nested
> regmap_lock_mutex
> regmap_write
> a10_eccmgr_irq_unmask
> unmask_irq.part.0
> irq_enable
> __irq_startup
> irq_startup
> __setup_irq
> request_threaded_irq
> devm_request_threaded_irq
> altr_sdram_probe
>
>Mark it so.
>
> [ bp: Massage. ]
>
>Fixes: 3dab6bd52687 ("EDAC, altera: Add support for Stratix10 SDRAM EDAC")
>Reported-by: Meng Li <Meng.Li@windriver.com>
>Signed-off-by: Meng Li <Meng.Li@windriver.com>
>Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
>Signed-off-by: Borislav Petkov <bp@suse.de>
>Cc: James Morse <james.morse@arm.com>
>Cc: linux-edac <linux-edac@vger.kernel.org>
>Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
>Cc: Robert Richter <rrichter@marvell.com>
>Cc: stable <stable@vger.kernel.org>
>Cc: Tony Luck <tony.luck@intel.com>
>Link: https://lkml.kernel.org/r/1574361048-17572-2-git-send-email-thor.thayer@linux.intel.com
Adjusted context and queued for 4.19.
--
Thanks,
Sasha
prev parent reply other threads:[~2019-12-15 18:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-15 10:53 FAILED: patch "[PATCH] EDAC/altera: Use fast register IO for S10 IRQs" failed to apply to 4.19-stable tree gregkh
2019-12-15 18:27 ` Sasha Levin [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191215182706.GL18043@sasha-vm \
--to=sashal@kernel.org \
--cc=Meng.Li@windriver.com \
--cc=bp@suse.de \
--cc=gregkh@linuxfoundation.org \
--cc=james.morse@arm.com \
--cc=linux-edac@vger.kernel.org \
--cc=mchehab@kernel.org \
--cc=rrichter@marvell.com \
--cc=stable@vger.kernel.org \
--cc=thor.thayer@linux.intel.com \
--cc=tony.luck@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).