All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alan Cox <alan@redhat.com>
To: gyang <graf.yang@analog.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Bryan Wu <cooloney@kernel.org>,
	linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Subject: Re: [PATCH 2/6] Blackfin Serial Driver: Add a debug function to serial driver.
Date: Wed, 15 Oct 2008 04:38:11 -0400	[thread overview]
Message-ID: <20081015083811.GA21237@shell.devel.redhat.com> (raw)
In-Reply-To: <1224037421.6284.40.camel@dyang>

On Wed, Oct 15, 2008 at 10:23:41AM +0800, gyang wrote:
> We are making a SMP like patch to blackfin, cpu_relax() is replaced by a
> data cache flush function which will count it to a per-cpu counter.
> If this serial function is called too early, the per-cpu data area have
> not been initialized, this call will cause crash.
> So we'd like to use barrier() instead of cpu_relax().

Can you split that out as a separate change and include the explanation in
the patch then.

Thanks
Alan

  reply	other threads:[~2008-10-15  8:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-13  9:46 [PATCH 0/6] Blackfin Serial Driver updates for 2.6.28 Bryan Wu
2008-10-13  9:46 ` [PATCH 1/6] Blackfin Serial Driver: updates kgdb over Blackfin serial driver with kgdb framework Bryan Wu
2008-10-13  9:46 ` [PATCH 2/6] Blackfin Serial Driver: Add a debug function to serial driver Bryan Wu
2008-10-14 13:27   ` Alan Cox
2008-10-14 13:27     ` Alan Cox
2008-10-15  2:23     ` gyang
2008-10-15  2:23       ` gyang
2008-10-15  8:38       ` Alan Cox [this message]
2008-10-16 13:58         ` Bryan Wu
2008-10-13  9:46 ` [PATCH 3/6] Blackfin Serial Driver: fix bug - SIR driver stop receiving randomly Bryan Wu
2008-10-13  9:46 ` [PATCH 4/6] Blackfin Serial Driver: Clean serial console and early prink code` Bryan Wu
2008-10-13  9:46 ` [PATCH 5/6] Blackfin Serial Driver: Fix bug - BF527-EZKIT unable to receive large files over UART in DMA mode Bryan Wu
2008-10-13  9:46 ` [PATCH 6/6] Blackfin Serial Driver: Remove BI status for known_good_char Bryan Wu
2008-10-13 10:16 ` [PATCH 0/6] Blackfin Serial Driver updates for 2.6.28 Alan Cox

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=20081015083811.GA21237@shell.devel.redhat.com \
    --to=alan@redhat.com \
    --cc=alan@lxorguk.ukuu.org.uk \
    --cc=cooloney@kernel.org \
    --cc=graf.yang@analog.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-serial@vger.kernel.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.