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    Subject[PATCH AUTOSEL 4.19 19/32] net: ks8851-ml: Fix 16-bit data access
    Date
    From: Marek Vasut <marex@denx.de>

    [ Upstream commit edacb098ea9c31589276152f09b4439052c0f2b1 ]

    The packet data written to and read from Micrel KSZ8851-16MLLI must be
    byte-swapped in 16-bit mode, add this byte-swapping.

    Signed-off-by: Marek Vasut <marex@denx.de>
    Cc: David S. Miller <davem@davemloft.net>
    Cc: Lukas Wunner <lukas@wunner.de>
    Cc: Petr Stetiar <ynezz@true.cz>
    Cc: YueHaibing <yuehaibing@huawei.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/micrel/ks8851_mll.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
    index 29ac83f4683a6..aff1619fb0e0e 100644
    --- a/drivers/net/ethernet/micrel/ks8851_mll.c
    +++ b/drivers/net/ethernet/micrel/ks8851_mll.c
    @@ -516,7 +516,7 @@ static inline void ks_inblk(struct ks_net *ks, u16 *wptr, u32 len)
    {
    len >>= 1;
    while (len--)
    - *wptr++ = (u16)ioread16(ks->hw_addr);
    + *wptr++ = be16_to_cpu(ioread16(ks->hw_addr));
    }

    /**
    @@ -530,7 +530,7 @@ static inline void ks_outblk(struct ks_net *ks, u16 *wptr, u32 len)
    {
    len >>= 1;
    while (len--)
    - iowrite16(*wptr++, ks->hw_addr);
    + iowrite16(cpu_to_be16(*wptr++), ks->hw_addr);
    }

    static void ks_disable_int(struct ks_net *ks)
    --
    2.20.1
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