[PATCH] ata: pata_cs5536: don't build on UML

[PATCH] ata: pata_cs5536: don't build on UML

[Randy Dunlap]

Similar to 22eebaa631c4 ("ata: pata_cs5535: Don't build on UML"),
prevent pata_cs5536 from building on UML since it references
symbols that are not present when building X86_32/i386 allmodconfig.

ERROR: modpost: "__tracepoint_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "do_trace_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "__tracepoint_read_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "do_trace_read_msr" [drivers/ata/pata_cs5536.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-um@lists.infradead.org
---
 drivers/ata/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff -- a/drivers/ata/Kconfig b/drivers/ata/Kconfig
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -650,6 +650,7 @@ config PATA_CS5535
 config PATA_CS5536
 	tristate "CS5536 PATA support"
 	depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
+	depends on !UML
 	help
 	  This option enables support for the AMD CS5536
 	  companion chip used with the Geode LX processor family.

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Re: [PATCH] ata: pata_cs5536: don't build on UML

[Geert Uytterhoeven]

Hi Randy,

On Sun, Mar 12, 2023 at 6:26 AM Randy Dunlap <rdunlap@infradead.org> wrote:
> Similar to 22eebaa631c4 ("ata: pata_cs5535: Don't build on UML"),
> prevent pata_cs5536 from building on UML since it references
> symbols that are not present when building X86_32/i386 allmodconfig.
>
> ERROR: modpost: "__tracepoint_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
> ERROR: modpost: "do_trace_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
> ERROR: modpost: "__tracepoint_read_msr" [drivers/ata/pata_cs5536.ko] undefined!
> ERROR: modpost: "do_trace_read_msr" [drivers/ata/pata_cs5536.ko] undefined!
>
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>

Thanks for your patch!

> --- a/drivers/ata/Kconfig
> +++ b/drivers/ata/Kconfig
> @@ -650,6 +650,7 @@ config PATA_CS5535
>  config PATA_CS5536
>         tristate "CS5536 PATA support"
>         depends on PCI && (X86_32 || MIPS || COMPILE_TEST)

How does this work on MIPS?
Oh, the MSR functionality inside the driver depends on CONFIG_X86_32.
Perhaps this can be fixed better for all users inside
arch/x86/include/asm/msr.h?

> +       depends on !UML
>         help
>           This option enables support for the AMD CS5536
>           companion chip used with the Geode LX processor family.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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