[PATCH] ata: Don't build PATA_CS5535 on UML

[PATCH] ata: Don't build PATA_CS5535 on UML

[Peter Foley]

This driver uses MSR functions that aren't implemented under UML.
Avoid building it to prevent tripping up allyesconfig.

e.g.
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3a3): undefined reference to `__tracepoint_read_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3d2): undefined reference to `__tracepoint_write_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x457): undefined reference to `__tracepoint_write_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x481): undefined reference to `do_trace_write_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4d5): undefined reference to `do_trace_write_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4f5): undefined reference to `do_trace_read_msr'
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x51c): undefined reference to `do_trace_write_msr'

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
---
 drivers/ata/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index eceaec33af65..9695c4404e26 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -640,6 +640,7 @@ config PATA_CS5530
 config PATA_CS5535
 	tristate "CS5535 PATA support (Experimental)"
 	depends on PCI && (X86_32 || (X86_64 && COMPILE_TEST))
+	depends on !UML
 	help
 	  This option enables support for the NatSemi/AMD CS5535
 	  companion chip used with the Geode processor family.

---
base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2
change-id: 20230112-umide-18c116111232

Best regards,
-- 
Peter Foley <pefoley2@pefoley.com>

Re: [PATCH] ata: Don't build PATA_CS5535 on UML

[Randy Dunlap]

Hi--

On 1/12/23 20:37, Peter Foley wrote:
> This driver uses MSR functions that aren't implemented under UML.
> Avoid building it to prevent tripping up allyesconfig.
> 
> e.g.
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3a3): undefined reference to `__tracepoint_read_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3d2): undefined reference to `__tracepoint_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x457): undefined reference to `__tracepoint_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x481): undefined reference to `do_trace_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4d5): undefined reference to `do_trace_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4f5): undefined reference to `do_trace_read_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x51c): undefined reference to `do_trace_write_msr'
> 
> Signed-off-by: Peter Foley <pefoley2@pefoley.com>

I have a similar patch on my system that I have never sent.
I think that PATA_CS5536 needs the same treatment.

Anyway:
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>

Thanks.

> ---
>  drivers/ata/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
> index eceaec33af65..9695c4404e26 100644
> --- a/drivers/ata/Kconfig
> +++ b/drivers/ata/Kconfig
> @@ -640,6 +640,7 @@ config PATA_CS5530
>  config PATA_CS5535
>  	tristate "CS5535 PATA support (Experimental)"
>  	depends on PCI && (X86_32 || (X86_64 && COMPILE_TEST))
> +	depends on !UML
>  	help
>  	  This option enables support for the NatSemi/AMD CS5535
>  	  companion chip used with the Geode processor family.
> 
> ---
> base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2
> change-id: 20230112-umide-18c116111232
> 
> Best regards,

-- 
~Randy

Re: [PATCH] ata: Don't build PATA_CS5535 on UML

[Damien Le Moal]

On 1/13/23 13:37, Peter Foley wrote:
> This driver uses MSR functions that aren't implemented under UML.
> Avoid building it to prevent tripping up allyesconfig.
> 
> e.g.
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3a3): undefined reference to `__tracepoint_read_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3d2): undefined reference to `__tracepoint_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x457): undefined reference to `__tracepoint_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x481): undefined reference to `do_trace_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4d5): undefined reference to `do_trace_write_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4f5): undefined reference to `do_trace_read_msr'
> /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x51c): undefined reference to `do_trace_write_msr'
> 
> Signed-off-by: Peter Foley <pefoley2@pefoley.com>

Applied to for-6.2-fixes with a slightly tweaked commit title.
Thanks !

-- 
Damien Le Moal
Western Digital Research