Re: [PATCH v5 02/44] ata: add HAS_IOPORT dependencies

Damien Le Moal
2023-05-22T11:49:42Z

On 5/22/23 19:50, Niklas Schnelle wrote:
> In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
> not being declared. We thus need to add HAS_IOPORT as dependency for
> those drivers using them.
>
> Co-developed-by: Arnd Bergmann <arnd@kernel.org>
> Signed-off-by: Arnd Bergmann <arnd@kernel.org>
> Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

This new version looks much nicer !

Please change my Ack to:

Acked-by: Damien Le Moal <dlemoal@kernel.org>

> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
> ---
> drivers/ata/Kconfig | 28 ++++++++++++++--------------
> drivers/ata/libata-sff.c | 4 ++++
> 2 files changed, 18 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
> index 42b51c9812a0..c521cdc51f8c 100644
> --- a/drivers/ata/Kconfig
> +++ b/drivers/ata/Kconfig
> @@ -557,7 +557,7 @@ comment "PATA SFF controllers with BMDMA"
>
> config PATA_ALI
> tristate "ALi PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> select PATA_TIMINGS
> help
> This option enables support for the ALi ATA interfaces
> @@ -567,7 +567,7 @@ config PATA_ALI
>
> config PATA_AMD
> tristate "AMD/NVidia PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> select PATA_TIMINGS
> help
> This option enables support for the AMD and NVidia PATA
> @@ -585,7 +585,7 @@ config PATA_ARASAN_CF
>
> config PATA_ARTOP
> tristate "ARTOP 6210/6260 PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for ARTOP PATA controllers.
>
> @@ -612,7 +612,7 @@ config PATA_ATP867X
>
> config PATA_CMD64X
> tristate "CMD64x PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> select PATA_TIMINGS
> help
> This option enables support for the CMD64x series chips
> @@ -659,7 +659,7 @@ config PATA_CS5536
>
> config PATA_CYPRESS
> tristate "Cypress CY82C693 PATA support (Very Experimental)"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> select PATA_TIMINGS
> help
> This option enables support for the Cypress/Contaq CY82C693
> @@ -707,7 +707,7 @@ config PATA_HPT366
>
> config PATA_HPT37X
> tristate "HPT 370/370A/371/372/374/302 PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for the majority of the later HPT
> PATA controllers via the new ATA layer.
> @@ -716,7 +716,7 @@ config PATA_HPT37X
>
> config PATA_HPT3X2N
> tristate "HPT 371N/372N/302N PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for the N variant HPT PATA
> controllers via the new ATA layer.
> @@ -819,7 +819,7 @@ config PATA_MPC52xx
>
> config PATA_NETCELL
> tristate "NETCELL Revolution RAID support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for the Netcell Revolution RAID
> PATA controller.
> @@ -855,7 +855,7 @@ config PATA_OLDPIIX
>
> config PATA_OPTIDMA
> tristate "OPTI FireStar PATA support (Very Experimental)"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables DMA/PIO support for the later OPTi
> controllers found on some old motherboards and in some
> @@ -865,7 +865,7 @@ config PATA_OPTIDMA
>
> config PATA_PDC2027X
> tristate "Promise PATA 2027x support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for Promise PATA pdc20268 to pdc20277 host adapters.
>
> @@ -873,7 +873,7 @@ config PATA_PDC2027X
>
> config PATA_PDC_OLD
> tristate "Older Promise PATA controller support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for the Promise 20246, 20262, 20263,
> 20265 and 20267 adapters.
> @@ -901,7 +901,7 @@ config PATA_RDC
>
> config PATA_SC1200
> tristate "SC1200 PATA support"
> - depends on PCI && (X86_32 || COMPILE_TEST)
> + depends on PCI && (X86_32 || COMPILE_TEST) && HAS_IOPORT
> help
> This option enables support for the NatSemi/AMD SC1200 SoC
> companion chip used with the Geode processor family.
> @@ -919,7 +919,7 @@ config PATA_SCH
>
> config PATA_SERVERWORKS
> tristate "SERVERWORKS OSB4/CSB5/CSB6/HT1000 PATA support"
> - depends on PCI
> + depends on PCI && HAS_IOPORT
> help
> This option enables support for the Serverworks OSB4/CSB5/CSB6 and
> HT1000 PATA controllers, via the new ATA layer.
> @@ -1183,7 +1183,7 @@ config ATA_GENERIC
>
> config PATA_LEGACY
> tristate "Legacy ISA PATA support (Experimental)"
> - depends on (ISA || PCI)
> + depends on (ISA || PCI) && HAS_IOPORT
> select PATA_TIMINGS
> help
> This option enables support for ISA/VLB/PCI bus legacy PATA
> diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
> index 9d28badfe41d..c8cb7ed28f83 100644
> --- a/drivers/ata/libata-sff.c
> +++ b/drivers/ata/libata-sff.c
> @@ -3042,6 +3042,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_port_start32);
> */
> int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev)
> {
> +#ifdef CONFIG_HAS_IOPORT
> unsigned long bmdma = pci_resource_start(pdev, 4);
> u8 simplex;
>
> @@ -3054,6 +3055,9 @@ int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev)
> if (simplex & 0x80)
> return -EOPNOTSUPP;
> return 0;
> +#else
> + return -ENOENT;
> +#endif /* CONFIG_HAS_IOPORT */
> }
> EXPORT_SYMBOL_GPL(ata_pci_bmdma_clear_simplex);
>

--
Damien Le Moal
Western Digital Research