From: Sascha Hauer <sha@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 1/2] include: asm-generic/atomic.h: always define atomic/atomic_64
Date: Thu, 21 Sep 2023 14:11:51 +0200 [thread overview]
Message-ID: <20230921121151.GM637806@pengutronix.de> (raw)
In-Reply-To: <20230921094354.265824-1-a.fatoum@pengutronix.de>
On Thu, Sep 21, 2023 at 11:43:53AM +0200, Ahmad Fatoum wrote:
> 64-bit accesses are always atomic in barebox, because we have nothing
> that would interrupt them. Thus define them unconditionally in the
> asm-generic header. This shows that an include for the s64 time is
> missing, so add that as well.
>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
> include/asm-generic/atomic.h | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Applied, thanks
Sascha
>
> diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
> index 45fc5da57594..27b0f73b487b 100644
> --- a/include/asm-generic/atomic.h
> +++ b/include/asm-generic/atomic.h
> @@ -8,12 +8,13 @@
> #ifndef __ASM_GENERIC_ATOMIC_H
> #define __ASM_GENERIC_ATOMIC_H
>
> +#include <linux/types.h>
> +
> #ifdef CONFIG_SMP
> #error SMP not supported
> #endif
> #define ATOMIC_INIT(i) { (i) }
>
> -#ifdef CONFIG_64BIT
> typedef struct { s64 counter; } atomic64_t;
>
> #define atomic64_read(v) ((v)->counter)
> @@ -59,7 +60,7 @@ static inline int atomic64_add_negative(s64 i, volatile atomic64_t *v)
> return val < 0;
> }
>
> -#else
> +
> typedef struct { volatile int counter; } atomic_t;
>
> #define ATOMIC_INIT(i) { (i) }
> @@ -114,7 +115,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
> {
> *addr &= ~mask;
> }
> -#endif
>
> /* Atomic operations are already serializing on ARM */
> #define smp_mb__before_atomic_dec() barrier()
> --
> 2.39.2
>
>
>
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prev parent reply other threads:[~2023-09-21 12:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-21 9:43 Ahmad Fatoum
2023-09-21 9:43 ` [PATCH 2/2] include: add linux/atomic.h header Ahmad Fatoum
2023-09-21 12:11 ` Sascha Hauer [this message]
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