diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2022-07-21 13:03:39 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-07-21 13:03:39 -0700 |
| commit | 6e0e846ee2ab01bc44254e6a0a6a6a0db1cba16d (patch) | |
| tree | e2a39b9ff9fbfa9adbaa004e3b42047664a8e57d /drivers/net/ethernet/intel/igc | |
| parent | 5588d628027092e66195097bdf6835ddf64418b3 (diff) | |
| parent | 7ca433dc6dedb2ec98dfc943f6db0c9b8996ed11 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/igc')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_regs.h | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 4758bdbe5df3..ebff0e04045d 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -6182,6 +6182,9 @@ u32 igc_rd32(struct igc_hw *hw, u32 reg) u8 __iomem *hw_addr = READ_ONCE(hw->hw_addr); u32 value = 0; + if (IGC_REMOVED(hw_addr)) + return ~value; + value = readl(&hw_addr[reg]); /* reads should not return all F's */ diff --git a/drivers/net/ethernet/intel/igc/igc_regs.h b/drivers/net/ethernet/intel/igc/igc_regs.h index d06018150764..c0d8214148d1 100644 --- a/drivers/net/ethernet/intel/igc/igc_regs.h +++ b/drivers/net/ethernet/intel/igc/igc_regs.h @@ -303,7 +303,8 @@ u32 igc_rd32(struct igc_hw *hw, u32 reg); #define wr32(reg, val) \ do { \ u8 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \ - writel((val), &hw_addr[(reg)]); \ + if (!IGC_REMOVED(hw_addr)) \ + writel((val), &hw_addr[(reg)]); \ } while (0) #define rd32(reg) (igc_rd32(hw, reg)) @@ -315,4 +316,6 @@ do { \ #define array_rd32(reg, offset) (igc_rd32(hw, (reg) + ((offset) << 2))) +#define IGC_REMOVED(h) unlikely(!(h)) + #endif |