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    Subject[PATCH 5.15 238/262] MIPS: ralink: mt7621: use bitwise NOT instead of logical
    Date
    From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

    [ Upstream commit 5d8965704fe5662e2e4a7e4424a2cbe53e182670 ]

    It was the intention to reverse the bits, not make them all zero by
    using logical NOT operator.

    Fixes: cc19db8b312a ("MIPS: ralink: mt7621: do memory detection on KSEG1")
    Suggested-by: Chuanhong Guo <gch981213@gmail.com>
    Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
    Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
    Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/mips/ralink/mt7621.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
    index fd9a872d5713..4c8378661219 100644
    --- a/arch/mips/ralink/mt7621.c
    +++ b/arch/mips/ralink/mt7621.c
    @@ -38,7 +38,7 @@ static bool __init mt7621_addr_wraparound_test(phys_addr_t size)
    __raw_writel(MT7621_MEM_TEST_PATTERN, dm);
    if (__raw_readl(dm) != __raw_readl(dm + size))
    return false;
    - __raw_writel(!MT7621_MEM_TEST_PATTERN, dm);
    + __raw_writel(~MT7621_MEM_TEST_PATTERN, dm);
    return __raw_readl(dm) == __raw_readl(dm + size);
    }

    --
    2.34.1


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