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SubjectRe: [PATCH v3] mac80211: LLVMLinux: Remove VLAIS usage from mac80211
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I'm confused.

On Tue, 2014-03-18 at 20:32 -0700, behanw@converseincode.com wrote:


> struct scatterlist assoc, pt, ct[2];
> - struct {
> - struct aead_request req;
> - u8 priv[crypto_aead_reqsize(tfm)];
> - } aead_req;
>
> - memset(&aead_req, 0, sizeof(aead_req));
> + char aead_req_data[sizeof(struct aead_request) +
> + crypto_aead_reqsize(tfm)]
> + __aligned(__alignof__(struct aead_request));

This looks fine, though I'd argue the blank lines before/after it
shouldn't be there, and the indentation should be a bit different, but I
was willing to clean that up.

> int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
> u8 *data, size_t data_len, u8 *mic)
> {
> struct scatterlist assoc, pt, ct[2];
> - struct {
> - struct aead_request req;
> - u8 priv[crypto_aead_reqsize(tfm)];
> - } aead_req;
>
> - memset(&aead_req, 0, sizeof(aead_req));
> + char aead_req_data[sizeof(struct aead_request) +
> + crypto_aead_reqsize(tfm) +
> + CRYPTO_MINALIGN] CRYPTO_MINALIGN_ATTR;

But why does the second instance use a completely different size/align?

johannes



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