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Wysocki" , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-pci@vger.kernel.org, Arnd Bergmann , linux-ide@vger.kernel.org References: <20230314121216.413434-1-schnelle@linux.ibm.com> <20230314121216.413434-3-schnelle@linux.ibm.com> From: Damien Le Moal Organization: Western Digital Research In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On 3/15/23 17:39, Geert Uytterhoeven wrote: > Hi Niklas, >=20 > On Tue, Mar 14, 2023 at 1:12=E2=80=AFPM Niklas Schnelle wrote: >> In a future patch HAS_IOPORT=3Dn will result in inb()/outb() and frien= ds >> not being declared. We thus need to add HAS_IOPORT as dependency for >> those drivers using them. >> >> Co-developed-by: Arnd Bergmann >> Signed-off-by: Niklas Schnelle >=20 > Thanks for your patch! >=20 >> --- a/drivers/ata/Kconfig >> +++ b/drivers/ata/Kconfig >> @@ -342,6 +342,7 @@ endif # HAS_DMA >> >> config ATA_SFF >> bool "ATA SFF support (for legacy IDE and PATA)" >> + depends on HAS_IOPORT >> default y >> help >> This option adds support for ATA controllers with SFF >=20 > ATA_SFF is a dependency for lots of (S)ATA drivers. > (at least) The following don't use I/O port access: >=20 > CONFIG_SATA_RCAR (arm/arm64) > CONFIG_PATA_FALCON (m68k/atari and m68k/q40) > CONFIG_PATA_GAYLE (m68k/amiga) > CONFIG_PATA_BUDDHA (m68k/amiga) >=20 > (at least) The following can use either MMIO or I/O port accesses: >=20 > CONFIG_PATA_PLATFORM (m68k/mac) But for these arch/platforms, would there be any reason to not have HAS_I= OPORT ? It is supported right now, so we should have HAS_IOPORT for them. >=20 > Gr{oetje,eeting}s, >=20 > Geert >=20 --=20 Damien Le Moal Western Digital Research