> On Sep 3, 2026, at 13:35, Kaitao Cheng <[email protected]> wrote:
>
> From: Kaitao Cheng <[email protected]>
>
> Page flag helpers for configuration-dependent flags provide false or no-op
> variants so that their users can be independent of the configuration.
>
> The HWPoison helpers do not fully follow this pattern. When
> CONFIG_MEMORY_FAILURE is enabled, PAGEFLAG() and TESTSCFLAG() provide the
> regular, test-and-set, and test-and-clear operations. When it is disabled,
> only PAGEFLAG_FALSE() is instantiated, leaving TestSetPageHWPoison() and
> TestClearPageHWPoison() undefined.
>
> Use TESTSCFLAG_FALSE() to provide the missing accessors when memory failure
> handling is disabled. Both accessors return false, which is consistent with
> HWPoison state being unavailable, and makes the accessor interface
> consistent across configurations.
>
> Signed-off-by: Kaitao Cheng <[email protected]>
Acked-by: Muchun Song <[email protected]>
Thanks.
