[PATCH] BRCM80211: improve readability on addresses copy

Íñigo Huguet
2021-05-11T07:04:19Z

A static analyzer identified as a potential bug the copy of
12 bytes from a 6 bytes array to a 6 bytes array. Both
arrays are 6 bytes addresses.

Although not being a real bug, it is not immediately clear
why is done this way: next 6 bytes address, contiguous to
the first one, must also be copied to next contiguous 6 bytes
address of the destination.

Copying each one separately will make both static analyzers
and reviewers happier.

Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
---
drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
index 763e0ec583d7..26de1bd7fee9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
@@ -6607,7 +6607,8 @@ brcms_c_d11hdrs_mac80211(struct brcms_c_info *wlc, struct ieee80211_hw *hw,
rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
IEEE80211_STYPE_RTS);

- memcpy(&rts->ra, &h->addr1, 2 * ETH_ALEN);
+ memcpy(&rts->ra, &h->addr1, ETH_ALEN);
+ memcpy(&rts->ta, &h->addr2, ETH_ALEN);
}

/* mainrate
--
2.31.1