linux-kernel - Re: [PATCH 1/2] drivers: staging: wilc1000: Replace message queue with standard Linux lists

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 30 Sep 2015 17:59:22 +0530
From:	Chandra Gorentla <csgorentla@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	dan.carpenter@...cle.com, johnny.kim@...el.com,
	rachel.kim@...el.com, dean.lee@...el.com, chris.park@...el.com,
	linux-wireless@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, sudipm.mukherjee@...il.com
Subject: Re: [PATCH 1/2] drivers: staging: wilc1000: Replace message queue
 with standard Linux lists

On Tue, Sep 29, 2015 at 02:44:02AM +0200, Greg KH wrote:
> On Mon, Sep 28, 2015 at 11:43:55PM +0530, Chandra S Gorentla wrote:
> >  - The message queue is replaced with standard Linux linked list
> >  - kmem_cache is used for list members
> 
> Why?
The list entires are of fixed type and repeatedly allocated and deallocated
for messages.
> 
> >  - A check for return value of receive method is added
> >  - GFP_ATOMIC is changed to GFP_KERNEL
> 
> Why?  Are you sure that is safe?
The allocations are moved out of 'spin_lock_irqsave' and
'spin_unlock_irqrestore'.  Hence they are safe.
> 
> >  - A few other related minor changes
> 
> Be specific please.
OK.  I will try to send seperate patches.
> 
> thanks,
> 
> greg k-h

Thank you,
chandra
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/