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authorArnd Bergmann <arnd@arndb.de>2019-03-22 17:37:02 +0300
committerKalle Valo <kvalo@codeaurora.org>2019-04-04 13:14:03 +0300
commitd825db346270dbceef83b7b750dbc29f1d7dcc0e (patch)
treed25cfd0d09ccde7569ec9a483e2ecf6881ddb3cc /drivers/net/wireless/broadcom
parent46953f97224d56a12ccbe9c6acaa84ca0dab2780 (diff)
downloadlinux-d825db346270dbceef83b7b750dbc29f1d7dcc0e.tar.xz
b43: shut up clang -Wuninitialized variable warning
Clang warns about what is clearly a case of passing an uninitalized variable into a static function: drivers/net/wireless/broadcom/b43/phy_lp.c:1852:23: error: variable 'gains' is uninitialized when used here [-Werror,-Wuninitialized] lpphy_papd_cal(dev, gains, 0, 1, 30); ^~~~~ drivers/net/wireless/broadcom/b43/phy_lp.c:1838:2: note: variable 'gains' is declared here struct lpphy_tx_gains gains, oldgains; ^ 1 error generated. However, this function is empty, and its arguments are never evaluated, so gcc in contrast does not warn here. Both compilers behave in a reasonable way as far as I can tell, so we should change the code to avoid the warning everywhere. We could just eliminate the lpphy_papd_cal() function entirely, given that it has had the TODO comment in it for 10 years now and is rather unlikely to ever get done. I'm doing a simpler change here, and just pass the 'oldgains' variable in that has been initialized, based on the guess that this is what was originally meant. Fixes: 2c0d6100da3e ("b43: LP-PHY: Begin implementing calibration & software RFKILL support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom')
-rw-r--r--drivers/net/wireless/broadcom/b43/phy_lp.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/wireless/broadcom/b43/phy_lp.c b/drivers/net/wireless/broadcom/b43/phy_lp.c
index 46408a560814..aedee026c5e2 100644
--- a/drivers/net/wireless/broadcom/b43/phy_lp.c
+++ b/drivers/net/wireless/broadcom/b43/phy_lp.c
@@ -1835,7 +1835,7 @@ static void lpphy_papd_cal(struct b43_wldev *dev, struct lpphy_tx_gains gains,
static void lpphy_papd_cal_txpwr(struct b43_wldev *dev)
{
struct b43_phy_lp *lpphy = dev->phy.lp;
- struct lpphy_tx_gains gains, oldgains;
+ struct lpphy_tx_gains oldgains;
int old_txpctl, old_afe_ovr, old_rf, old_bbmult;
lpphy_read_tx_pctl_mode_from_hardware(dev);
@@ -1849,9 +1849,9 @@ static void lpphy_papd_cal_txpwr(struct b43_wldev *dev)
lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
if (dev->dev->chip_id == 0x4325 && dev->dev->chip_rev == 0)
- lpphy_papd_cal(dev, gains, 0, 1, 30);
+ lpphy_papd_cal(dev, oldgains, 0, 1, 30);
else
- lpphy_papd_cal(dev, gains, 0, 1, 65);
+ lpphy_papd_cal(dev, oldgains, 0, 1, 65);
if (old_afe_ovr)
lpphy_set_tx_gains(dev, oldgains);