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Subject[PATCH] net: stmmac: xgmac: add missing parentheses to fix precendence error
Date
From: Colin Ian King <colin.king@canonical.com>

The expression !(hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10 is always zero, so
the masking operation is incorrect. Fix this by adding the missing
parentheses to correctly bind the negate operator on the entire expression.

Addresses-Coverity: ("Operands don't affect result")
Fixes: c2b69474d63b ("net: stmmac: xgmac: Correct RAVSEL field interpretation")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 965cbe3e6f51..2e814aa64a5c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -369,7 +369,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr,
dma_cap->eee = (hw_cap & XGMAC_HWFEAT_EEESEL) >> 13;
dma_cap->atime_stamp = (hw_cap & XGMAC_HWFEAT_TSSEL) >> 12;
dma_cap->av = (hw_cap & XGMAC_HWFEAT_AVSEL) >> 11;
- dma_cap->av &= !(hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10;
+ dma_cap->av &= !((hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10);
dma_cap->arpoffsel = (hw_cap & XGMAC_HWFEAT_ARPOFFSEL) >> 9;
dma_cap->rmon = (hw_cap & XGMAC_HWFEAT_MMCSEL) >> 8;
dma_cap->pmt_magic_frame = (hw_cap & XGMAC_HWFEAT_MGKSEL) >> 7;
--
2.20.1
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