Re: [PATCH v3 3/4] hugetlb: Fix return value of __setup handlers

[Baolin Wang]

On 4/13/2022 11:29 AM, Peng Liu wrote:
> When __setup() return '0', using invalid option values causes the
> entire kernel boot option string to be reported as Unknown. Hugetlb
> calls __setup() and will return '0' when set invalid parameter
> string.
>
> The following phenomenon is observed:
>   cmdline:
>    hugepagesz=1Y hugepages=1
>   dmesg:
>    HugeTLB: unsupported hugepagesz=1Y
>    HugeTLB: hugepages=1 does not follow a valid hugepagesz, ignoring
>    Unknown kernel command line parameters "hugepagesz=1Y hugepages=1"
>
> Since hugetlb will print warning/error information before return for
> invalid parameter string, just use return '1' to avoid print again.
>
> Signed-off-by: Peng Liu <liupeng256@xxxxxxxxxx>

LGTM.
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>