linux-kernel - Re: [PATCH 1/1] xen/gntdev: kmalloc structure gntdev_copy

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Message-ID: <57301F67.2030101@suse.com>
Date:	Mon, 9 May 2016 07:25:59 +0200
From:	Juergen Gross <jgross@...e.com>
To:	Heinrich Schuchardt <xypron.glpk@....de>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>
Cc:	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] xen/gntdev: kmalloc structure gntdev_copy_batch

On 07/05/16 10:17, Heinrich Schuchardt wrote:
> Commit a4cdb556cae0 ("xen/gntdev: add ioctl for grant copy")
> leads to a warning
> xen/gntdev.c: In function ‘gntdev_ioctl_grant_copy’:
> xen/gntdev.c:949:1: warning: the frame size of 1248 bytes
> is larger than 1024 bytes [-Wframe-larger-than=]
> 
> This can be avoided by using kmalloc instead of the stack.
> 
> Testing requires CONFIG_XEN_GNTDEV.
> 
> Fixes: a4cdb556cae0 ("xen/gntdev: add ioctl for grant copy")
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>

Acked-by: Juergen Gross <jgross@...e.com>