2015-07-08 13:26:02

by Nicholas Mc Guire

[permalink] [raw]
Subject: [BUG ?] brcmsmac: condition with no effect

From: Nicholas Mc Guire <[email protected]>

scanning for trivial bug-patters with coccinelle spatches returned:
drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c:3391
WARNING: condition with no effect (if branch == else)

added in 'commit 5b435de0d786 ("net: wireless: add brcm80211 drivers")'

drivers/net/wireless/brcm80211/brcmsmac/phy/phy_lcn.c:wlc_lcnphy_deaf_mode()
(line numbers are from linux-next v4.2-rc2)
3391 if (LCNREV_LT(pi->pubpi.phy_rev, 2)) {
3392 mod_phy_reg(pi, 0x4b0, (0x1 << 5), (mode) << 5);
3393 mod_phy_reg(pi, 0x4b1, (0x1 << 9), 0 << 9);
3394 } else {
3395 mod_phy_reg(pi, 0x4b0, (0x1 << 5), (mode) << 5);
3396 mod_phy_reg(pi, 0x4b1, (0x1 << 9), 0 << 9);
3397 }

Can't figure out what the intent of this condition is but it currently has
no effect as if == else and this most likely is not the intent.