diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-03-22 15:37:02 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-04 13:14:03 +0300 |
| commit | d825db346270dbceef83b7b750dbc29f1d7dcc0e (patch) | |
| tree | d25cfd0d09ccde7569ec9a483e2ecf6881ddb3cc /drivers/net | |
| parent | 46953f97224d56a12ccbe9c6acaa84ca0dab2780 (diff) | |
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')
| -rw-r--r-- | drivers/net/wireless/broadcom/b43/phy_lp.c | 6 |
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); |