[PATCH master] x86: <asm/io.h>: fix outl/outsl access size

[PATCH master] x86: <asm/io.h>: fix outl/outsl access size

[Ahmad Fatoum]

outl so far behaved like outb, probably due to a copy-paste error when
it was first added. We have three users in-tree for outl:

* drivers/serial/serial_ns16550_pci.c
  only for handling a Quatech qurik, which probably no one ever needed

* drivers/serial/serial_ns16550.c
  For platform drivers with a 4 byte I/O port resource. Only possible
  user is x86 and that has a 1 byte I/O port resource. Thus no one
  used this either.

* drivers/watchdog/itco_wdt.c
  Here it indeed triggers a bug, although in my testing the WDAT
  was functional without.

Fix this up so new code doesn't have to track this down.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
Cc: Steffen Trumtrar <str@pengutronix.de>
---
 arch/x86/include/asm/io.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 0971727bc63d..23854128cb06 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -63,13 +63,13 @@ BUILDIO(l, , int)
 
 #define outb	outb
 #define outw	outw
-#define outl	outb
+#define outl	outl
 #define inb	inb
 #define inw	inw
 #define inl	inl
 #define outsb	outsb
 #define outsw	outsw
-#define outsl	outsb
+#define outsl	outsl
 #define insb	insb
 #define insw	insw
 #define insl	insl
-- 
2.20.1


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Re: [PATCH master] x86: <asm/io.h>: fix outl/outsl access size

[Sascha Hauer]

On Fri, Jan 07, 2022 at 07:36:44AM +0100, Ahmad Fatoum wrote:
> outl so far behaved like outb, probably due to a copy-paste error when
> it was first added. We have three users in-tree for outl:
> 
> * drivers/serial/serial_ns16550_pci.c
>   only for handling a Quatech qurik, which probably no one ever needed
> 
> * drivers/serial/serial_ns16550.c
>   For platform drivers with a 4 byte I/O port resource. Only possible
>   user is x86 and that has a 1 byte I/O port resource. Thus no one
>   used this either.
> 
> * drivers/watchdog/itco_wdt.c
>   Here it indeed triggers a bug, although in my testing the WDAT
>   was functional without.
> 
> Fix this up so new code doesn't have to track this down.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
> Cc: Steffen Trumtrar <str@pengutronix.de>
> ---
>  arch/x86/include/asm/io.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied, thanks

Sascha

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