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From: Joe Perches <joe@perches.com>
To: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
	"'devel@driverdev.osuosl.org'" <devel@driverdev.osuosl.org>,
	"'virtualization@lists.osdl.org'" <virtualization@lists.osdl.org>,
	"'gregkh@suse.de'" <gregkh@suse.de>
Subject: Re: [PATCH 1/1] Rename camel case variables in channel.c  (updated again)
Date: Fri, 24 Sep 2010 10:29:48 -0700	[thread overview]
Message-ID: <1285349388.11616.117.camel@Joe-Laptop> (raw)
In-Reply-To: <1FB5E1D5CA062146B38059374562DF7289EDBC9E@TK5EX14MBXC130.redmond.corp.microsoft.com>

On Fri, 2010-09-24 at 16:06 +0000, Haiyang Zhang wrote:
> From: Haiyang Zhang <haiyangz@microsoft.com>
> -		set_bit(Channel->MonitorBit,
> -			(unsigned long *)&monitorPage->TriggerGroup
> -					[Channel->MonitorGroup].Pending);
> +		set_bit(channel->MonitorBit,
> +			(unsigned long *)&monitorpage->TriggerGroup
> +					[channel->MonitorGroup].Pending);

Unrelated to the camelcase conversion, this casting of
a (u32 *) to an (unsigned long *) to set a bit seems
like a bad idea and an error waiting to happen.

Does it really need to be atomic?

Perhaps it'd be better to write something like:

	monitorpage->TriggerGroup[channel->MonitorGroup].Pending |=
		(1 << channel->MonitorBit);

Maybe like the other 2 uses of set_bit in hv, it
should be set_bit(channel->MonitorBit & 31, ...



  reply	other threads:[~2010-09-24 17:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-23 22:04 [PATCH 1/1] Rename camel case variables in channel.c (updated) Haiyang Zhang
2010-09-23 22:38 ` Joe Perches
2010-09-24 16:08   ` Haiyang Zhang
2010-09-24 16:06 ` [PATCH 1/1] Rename camel case variables in channel.c (updated again) Haiyang Zhang
2010-09-24 17:29   ` Joe Perches [this message]
2010-09-27  1:19   ` Greg KH
2010-09-27  2:52     ` Haiyang Zhang
2010-09-27  6:10       ` Greg KH
2010-09-27 17:57         ` Haiyang Zhang
2010-09-27 19:32           ` Greg KH
2010-09-27 22:59             ` Haiyang Zhang
2010-09-28  1:25               ` Greg KH

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