From e1499e81497cd46f296c4680096323f0aadd2604 Mon Sep 17 00:00:00 2001 From: Aya Mahfouz Date: Sat, 11 Oct 2014 02:25:34 +0200 Subject: [PATCH] staging: vt6655: card.c: replace memcpy() by ether_addr_copy() using coccinelle This patch focuses on fixing the following warning generated by checkpatch.pl for the file rxtx.c : Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2) The changes were applied using the following coccinelle rule: @@ expression e1, e2; @@ - memcpy(e1, e2, ETH_ALEN); + ether_addr_copy(e1, e2); According to ether_addr_copy() description and functionality, all Ethernet addresses should align to the u16 datatype. Here is the output of pahole for the relevant datastructures: struct pmkid_candidate { NDIS_802_11_MAC_ADDRESS BSSID; /* 0 6 */ /* XXX 2 bytes hole, try to pack */ long unsigned int Flags; /* 8 4 */ /* size: 12, cachelines: 1, members: 2 */ /* sum members: 10, holes: 1, sum holes: 2 */ /* last cacheline: 12 bytes */ }; Signed-off-by: Aya Mahfouz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vt6655/card.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/vt6655/card.c b/drivers/staging/vt6655/card.c index 5a6950264bdc..f2a33a9742c6 100644 --- a/drivers/staging/vt6655/card.c +++ b/drivers/staging/vt6655/card.c @@ -1000,7 +1000,7 @@ CARDbAdd_PMKID_Candidate( else pCandidateList->Flags &= ~(NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED); - memcpy(pCandidateList->BSSID, pbyBSSID, ETH_ALEN); + ether_addr_copy(pCandidateList->BSSID, pbyBSSID); pDevice->gsPMKIDCandidate.NumCandidates++; pr_debug("NumCandidates:%d\n", (int)pDevice->gsPMKIDCandidate.NumCandidates); -- 2.39.5