From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: viresh kumar <viresh.kumar@st.com>
Cc: "Koul, Vinod" <vinod.koul@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Linus WALLEIJ <linus.walleij@stericsson.com>,
amitgoel <amit.goel@st.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Armando VISCONTI <armando.visconti@st.com>,
Shiraz HASHIM <shiraz.hashim@st.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: dmaengine: Can we schedule new transfer from dma callback routine??
Date: Fri, 15 Apr 2011 10:15:29 +0100 [thread overview]
Message-ID: <20110415091529.GJ1611@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <4DA7E997.3080402@st.com>
On Fri, Apr 15, 2011 at 12:15:43PM +0530, viresh kumar wrote:
> There is one more issue in the current DW_DMAC driver.
> As most of interrupt processing is done in tasklet, spin_lock_bh() is used
> in almost every routine.
As you can't use spin_lock_bh() from IRQ context (you'll get a lockdep
warning) these need to be converted to being the irqsave versions.
That's probably the easiest fix.
prev parent reply other threads:[~2011-04-15 9:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-11 7:55 viresh kumar
2011-04-11 8:56 ` Russell King - ARM Linux
2011-04-11 10:39 ` viresh kumar
2011-04-15 6:45 ` viresh kumar
2011-04-15 9:15 ` Russell King - ARM Linux [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=20110415091529.GJ1611@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=amit.goel@st.com \
--cc=armando.visconti@st.com \
--cc=dan.j.williams@intel.com \
--cc=linus.walleij@stericsson.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=shiraz.hashim@st.com \
--cc=vinod.koul@intel.com \
--cc=viresh.kumar@st.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
all inboxes | Powered by JetHome®