evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

staging: vt6656: fix Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)

Browse source 
This patch fixes the following checkpatch.pl warning:
fix Prefer ether_addr_copy() over memcpy()
if the Ethernet addresses are __aligned(2)

Pahole showed that the 2 structs are aligned to u16

struct vnt_mic_hdr {
        u8                         id;                   /*     0     1 */
        u8                         tx_priority;          /*     1     1 */
        u8                         mic_addr2[6];         /*     2     6 */
        u8                         ccmp_pn[6];           /*     8     6 */
        __be16                     payload_len;          /*    14     2 */
        __be16                     hlen;                 /*    16     2 */
        __le16                     frame_control;        /*    18     2 */
        u8                         addr1[6];             /*    20     6 */
        u8                         addr2[6];             /*    26     6 */
        u8                         addr3[6];             /*    32     6 */
        __le16                     seq_ctrl;             /*    38     2 */
        u8                         addr4[6];             /*    40     6 */
        u16                        packing;              /*    46     2 */

        /* size: 48, cachelines: 1, members: 13 */
        /* last cacheline: 48 bytes */
};

struct ieee80211_hdr {
        __le16                     frame_control;        /*     0     2 */
        __le16                     duration_id;          /*     2     2 */
        u8                         addr1[6];             /*     4     6 */
        u8                         addr2[6];             /*    10     6 */
        u8                         addr3[6];             /*    16     6 */
        __le16                     seq_ctrl;             /*    22     2 */
        u8                         addr4[6];             /*    24     6 */

        /* size: 30, cachelines: 1, members: 7 */
        /* last cacheline: 30 bytes */
};

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Reviewed-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heba Aamer 2015-01-21 13:08:48 +02:00 • committed by Greg Kroah-Hartman
parent 7a9331c0c0
commit 48eaa7f596
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/staging/vt6656/rxtx.c
View file

@ -738,7 +738,7 @@ static void vnt_fill_txkey(struct vnt_usb_send_context *tx_context,
mic_hdr->id = 0x59;
mic_hdr->payload_len = cpu_to_be16(payload_len);
memcpy(mic_hdr->mic_addr2, hdr->addr2, ETH_ALEN);
ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
ieee80211_get_key_tx_seq(tx_key, &seq);