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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-pci@vger.kernel.org On 2023/03/15 20:36, Geert Uytterhoeven wrote: > Hi Damien, >=20 > On Wed, Mar 15, 2023 at 10:12=E2=80=AFAM Damien Le Moal > wrote: >> On 3/15/23 17:39, Geert Uytterhoeven wrote: >>> 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 fri= ends >>>> 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 >>> >>> Thanks for your patch! >>> >>>> --- 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 >>> >>> ATA_SFF is a dependency for lots of (S)ATA drivers. >>> (at least) The following don't use I/O port access: >>> >>> CONFIG_SATA_RCAR (arm/arm64) >>> CONFIG_PATA_FALCON (m68k/atari and m68k/q40) >>> CONFIG_PATA_GAYLE (m68k/amiga) >>> CONFIG_PATA_BUDDHA (m68k/amiga) >>> >>> (at least) The following can use either MMIO or I/O port accesses: >>> >>> CONFIG_PATA_PLATFORM (m68k/mac) >> >> But for these arch/platforms, would there be any reason to not have HA= S_IOPORT ? >> It is supported right now, so we should have HAS_IOPORT for them. >=20 > That's the point: on Amiga and Atari, HAS_IOPORT is optional, and > not related to IDE support. On Mac, it is never present. Ah. OK. I see now. So indeed, applying the dependency on the entire ATA_S= FF group of drivers is very coarse. Niklas, Can you change this to apply the dependency per driver ? --=20 Damien Le Moal Western Digital Research