Previously, the defines for phy_device flags in the Micrel driver were
ambiguous in their representation. They were intended to be bit masks
but were mistakenly defined as bit positions. This led to the following
issues:
- MICREL_KSZ8_P1_ERRATA, designated for KSZ88xx switches, overlapped
with MICREL_PHY_FXEN and MICREL_PHY_50MHZ_CLK.
- Due to this overlap, the code path for MICREL_PHY_FXEN, tailored for
the KSZ8041 PHY, was not executed for KSZ88xx PHYs.
- Similarly, the code associated with MICREL_PHY_50MHZ_CLK wasn't
triggered for KSZ88xx.
To rectify this, all three flags have now been explicitly converted to
use the `BIT()` macro, ensuring they are defined as bit masks and
preventing potential overlaps in the future.
Fixes: 49011e0c1555 ("net: phy: micrel: ksz886x/ksz8081: add cabletest support")
Signed-off-by: Oleksij Rempel <[email protected]>
---
include/linux/micrel_phy.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index 8bef1ab62bba3..322d872559847 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -41,9 +41,9 @@
#define PHY_ID_KSZ9477 0x00221631
/* struct phy_device dev_flags definitions */
-#define MICREL_PHY_50MHZ_CLK 0x00000001
-#define MICREL_PHY_FXEN 0x00000002
-#define MICREL_KSZ8_P1_ERRATA 0x00000003
+#define MICREL_PHY_50MHZ_CLK BIT(0)
+#define MICREL_PHY_FXEN BIT(1)
+#define MICREL_KSZ8_P1_ERRATA BIT(2)
#define MICREL_KSZ9021_EXTREG_CTRL 0xB
#define MICREL_KSZ9021_EXTREG_DATA_WRITE 0xC
--
2.39.2
Hello:
This patch was applied to netdev/net.git (main)
by David S. Miller <[email protected]>:
On Fri, 1 Sep 2023 06:53:23 +0200 you wrote:
> Previously, the defines for phy_device flags in the Micrel driver were
> ambiguous in their representation. They were intended to be bit masks
> but were mistakenly defined as bit positions. This led to the following
> issues:
>
> - MICREL_KSZ8_P1_ERRATA, designated for KSZ88xx switches, overlapped
> with MICREL_PHY_FXEN and MICREL_PHY_50MHZ_CLK.
> - Due to this overlap, the code path for MICREL_PHY_FXEN, tailored for
> the KSZ8041 PHY, was not executed for KSZ88xx PHYs.
> - Similarly, the code associated with MICREL_PHY_50MHZ_CLK wasn't
> triggered for KSZ88xx.
>
> [...]
Here is the summary with links:
- [net,v2,1/1] net: phy: micrel: Correct bit assignments for phy_device flags
https://git.kernel.org/netdev/net/c/719c5e37e99d
You are awesome, thank you!
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