There is no need to store the result of the & operation back to the variable var. The store is redundant, replace &= with just &. Cleans up clang scan warning: drivers/usb/phy/phy-keystone.c:62:5: warning: Although the value stored to 'val' is used in the enclosing expression, the value is never actually read from 'val' [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx> --- drivers/usb/phy/phy-keystone.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c index 358d05cb643d..f75912279b39 100644 --- a/drivers/usb/phy/phy-keystone.c +++ b/drivers/usb/phy/phy-keystone.c @@ -59,7 +59,7 @@ static void keystone_usbphy_shutdown(struct usb_phy *phy) val = keystone_usbphy_readl(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK); keystone_usbphy_writel(k_phy->phy_ctrl, USB_PHY_CTL_CLOCK, - val &= ~PHY_REF_SSP_EN); + val & ~PHY_REF_SSP_EN); } static int keystone_usbphy_probe(struct platform_device *pdev) -- 2.35.3