Re: [PATCH 2/2] linux-user: Use ARRAY_SIZE with bitmask_transtbl

["Alex Bennée" <alex.bennee@linaro.org>]

Richard Henderson <richard.henderson@linaro.org> writes:

> Rather than using a zero tuple to end the table, use a macro
> to apply ARRAY_SIZE and pass that on to the convert functions.
>
> This fixes two bugs in which the conversion functions required
> that both the target and host masks be non-zero in order to
> continue, rather than require both target and host masks be
> zero in order to terminate.
>
> This affected mmap_flags_tbl when the host does not support
> all of the flags we wish to convert (e.g. MAP_UNINITIALIZED).
> Mapping these flags to zero is good enough, and matches how
> the kernel ignores bits that are unknown.
>
> Fixes: 4b840f96 ("linux-user: Populate more bits in mmap_flags_tbl")
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro