linux-kernel - Re: [PATCH] bluetooth: LLVMLinux: Remove VLAIS from bluetooth/amp.c

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Date:	Fri, 5 Sep 2014 16:22:16 -0700
From:	Marcel Holtmann <marcel@...tmann.org>
To:	behanw@...verseincode.com
Cc:	"David S. Miller" <davem@...emloft.net>,
	"Gustavo F. Padovan" <gustavo@...ovan.org>,
	Johan Hedberg <johan.hedberg@...il.com>,
	BlueZ development <linux-bluetooth@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mark Charlebois <charlebm@...il.com>,
	Jan-Simon Möller <dl9pf@....de>
Subject: Re: [PATCH] bluetooth: LLVMLinux: Remove VLAIS from bluetooth/amp.c

Hi Behan,

> Replaced the use of a Variable Length Array In Struct (VLAIS) with a C99
> compliant equivalent. This patch allocates the appropriate amount of memory
> using an char array.
> 
> The new code can be compiled with both gcc and clang.
> 
> struct shash_desc contains a flexible array member member ctx declared with
> CRYPTO_MINALIGN_ATTR, so sizeof(struct shash_desc) aligns the beginning
> of the array declared after struct shash_desc with long long.
> 
> No trailing padding is required because it is not a struct type that can
> be used in an array.
> 
> The CRYPTO_MINALIGN_ATTR is required so that desc is aligned with long long
> as would be the case for a struct containing a member with
> CRYPTO_MINALIGN_ATTR.
> 
> Signed-off-by: Behan Webster <behanw@...verseincode.com>
> Signed-off-by: Mark Charlebois <charlebm@...il.com>
> Signed-off-by: Jan-Simon Möller <dl9pf@....de>
> ---
> net/bluetooth/amp.c | 13 ++++++-------
> 1 file changed, 6 insertions(+), 7 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel

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