Sorting include files in alphabetic order in
drivers/tty/serial/samsung.c revealed the following error:

In file included from drivers/tty/serial/samsung_tty.c:24:
./arch/arm64/include/asm/irq.h:9:43: error: unknown type name ‘cpumask_t’
    9 | void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu);
      |                                           ^~~~~~~~~

Include cpumask.h to avoid unknown type errors for parents of irq.h that
don't include cpumask.h.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
v2:
- fix typo, s/avod/avoid
- include the linux header first and then add a new line to differentiate
  from the asm header
- collect Mark's Acked-by tag

 arch/arm64/include/asm/irq.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index 50ce8b697ff3..e93548914c36 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -4,6 +4,8 @@
 
 #ifndef __ASSEMBLER__
 
+#include <linux/cpumask.h>
+
 #include <asm-generic/irq.h>
 
 void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu);
-- 
2.43.0.472.g3155946c3a-goog

On Wed, 10 Jan 2024 07:40:07 +0000, Tudor Ambarus wrote:
> Sorting include files in alphabetic order in
> drivers/tty/serial/samsung.c revealed the following error:
> 
> In file included from drivers/tty/serial/samsung_tty.c:24:
> ./arch/arm64/include/asm/irq.h:9:43: error: unknown type name ‘cpumask_t’
>     9 | void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu);
>       |                                           ^~~~~~~~~
> 
> [...]

Applied to arm64 (for-next/core), thanks!

[1/1] arm64: irq: include <linux/cpumask.h>
      https://git.kernel.org/arm64/c/b95df3bd1ea3

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev

Quoting Tudor Ambarus (2024-01-09 23:40:07)
> Sorting include files in alphabetic order in
> drivers/tty/serial/samsung.c revealed the following error:
>
> In file included from drivers/tty/serial/samsung_tty.c:24:
> ./arch/arm64/include/asm/irq.h:9:43: error: unknown type name ‘cpumask_t’
>     9 | void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu);
>       |                                           ^~~~~~~~~
>
> Include cpumask.h to avoid unknown type errors for parents of irq.h that
> don't include cpumask.h.
>
> Acked-by: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>