Re: [PATCH 3/3] MIPS: fix truncation in __cmpxchg_small for short values

Re: [PATCH 3/3] MIPS: fix truncation in __cmpxchg_small for short values

[Paul Burton]

Hello,

Michael Clark wrote:
> __cmpxchg_small erroneously uses u8 for load comparison which can
> be either char or short. This patch changes the local varialble to
> u32 which is sufficiently sized, as the loaded value is already
> masked and shifted appropriately. Using an integer size avoids
> any unnecessary canonicalization from use of non native widths.
> 
> This patch is part of a series that adapts the MIPS small word
> atomics code for xchg and cmpxchg on short and char to RISC-V.
> 
> Cc: RISC-V Patches <patches@groups.riscv.org>
> Cc: Linux RISC-V <linux-riscv@lists.infradead.org>
> Cc: Linux MIPS <linux-mips@linux-mips.org>
> Signed-off-by: Michael Clark <michaeljclark@mac.com>

Applied to mips-fixes.

Thanks,
    Paul

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