Re: [PATCH v2] mac80211: LLVMLinux: Remove VLAIS usage from mac80211
From: Sergei Antonov <hidden>
Date: 2014-03-08 20:30:00
Also in:
linux-wireless, lkml
On 8 March 2014 02:26, [off-list ref] wrote:
quoted hunk ↗ jump to hunk
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c index 7c7df47..3317578 100644 --- a/net/mac80211/aes_ccm.c +++ b/net/mac80211/aes_ccm.c@@ -23,12 +23,14 @@ void ieee80211_aes_ccm_encrypt(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; + + struct aead_request *aead_req = (void *) aead_req_data;
Bad trick with regards to alignment. The alignment requirement for struct aead_request is stronger than what an array of chars may have.