[PATCH v3] io: fix ftw ABI on MIPS n64

[Xi Ruoyao]

On Mon, 2026-07-27 at 09:29 -0300, Adhemerval Zanella Netto wrote:
> 
> 
> On 22/07/26 08:26, Xi Ruoyao wrote:
> > On MIPS n64 off_t is same as off64_t, but struct stat is not same as
> > struct stat64 (very peculiar but see the "as tempting as it..." comment
> > in linux/mips/kernel_stat.h).  As the ftw/ftw64 callback accepts a
> > pointer to a function who accepts struct stat/stat64, for MIPS n64 we
> > must use different implementations for ftw and ftw64.
> > 
> > Thus for testing if ftw64 can be aliased to ftw, we should check
> > XSTAT_IS_XSTAT64 instead of __OFF_T_MATCHES_OFF64_T.
> > 
> > This resolves the io/tst-ftw-lnk failure observed on MIPS n64.
> > 
> > Link: https://sourceware.org/glibc/wiki/Testing/Tests/io/tst-ftw-lnk
> > Signed-off-by: Xi Ruoyao <xry111@xry111.site>
> 
> Sigh, stat ABI strikes again... LTGM, thanks.
> 
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

I've no write access yet, please push it.

(Or maybe I could make an application for the write access?)

-- 
Xi Ruoyao <xry111@xry111.site>