On Thu, Sep 21, 2023, at 07:04, Baoquan He wrote: > ioremap_uc() is only meaningful on old x86-32 systems with the PAT > extension, and on ia64 with its slightly unconventional ioremap() > behavior. So remove the ioremap_uc() definition in architecutures > other than x86 and ia64. These architectures all have asm-generic/io.h > included and will have the default ioremap_uc() definition which > returns NULL. > > This changes the existing behaviour, while no need to worry about > any breakage because in the only callsite of ioremap_uc(), code > has been adjusted to eliminate the impact. Please see > atyfb_setup_generic() of drivers/video/fbdev/aty/atyfb_base.c. > > If any new invocation of ioremap_uc() need be added, please consider > using ioremap() intead or adding a ARCH specific version if necessary. > > Signed-off-by: Baoquan He <b...@redhat.com> > Acked-by: Geert Uytterhoeven <ge...@linux-m68k.org> > Acked-by: Michael Ellerman <m...@ellerman.id.au> (powerpc) > Acked-by: Helge Deller <del...@gmx.de> # parisc > Cc: linux-al...@vger.kernel.org > Cc: linux-hexa...@vger.kernel.org > Cc: linux-m...@lists.linux-m68k.org > Cc: linux-m...@vger.kernel.org > Cc: linux-par...@vger.kernel.org > Cc: linuxppc-dev@lists.ozlabs.org > Cc: linux...@vger.kernel.org > Cc: sparcli...@vger.kernel.org
Acked-by: Arnd Bergmann <a...@arndb.de>
