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

From: Marcel Holtmann
Date: Fri Sep 05 2014 - 19:21:59 EST


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@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Mark Charlebois <charlebm@xxxxxxxxx>
> Signed-off-by: Jan-Simon Möller <dl9pf@xxxxxx>
> ---
> 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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