Re: [PATCH v2] mac80211: LLVMLinux: Remove VLAIS usage from mac80211

From: Sergei Antonov
Date: Sat Mar 08 2014 - 18:01:07 EST


On 8 March 2014 23:01, PaX Team <pageexec@xxxxxxxxxxx> wrote:
> On 8 Mar 2014 at 21:29, Sergei Antonov wrote:
>
>> > - memset(&aead_req, 0, sizeof(aead_req));
>> > + char aead_req_data[sizeof(struct aead_request) +
>> > + crypto_aead_reqsize(tfm) +
>> > + CRYPTO_MINALIGN] CRYPTO_MINALIGN_ATTR;
> ^^^^^^^^^^^^^^^^^^^^
> wouldn't the underlined attribute ensure the required alignment?
Yes. Sorry, I overlooked it.

I would remove unneeded CRYPTO_MINALIGN and get the alignment from the
target structure:
char aead_req_data[sizeof(struct aead_request) +
crypto_aead_reqsize(tfm)]
__attribute__((__aligned__(__alignof__(struct aead_request))));
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