From: Sascha Hauer <s.hauer@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 15/23] sandbox: asm: implement <asm/atomic.h>
Date: Tue, 12 May 2020 09:26:13 +0200 [thread overview]
Message-ID: <20200512072613.GY5877@pengutronix.de> (raw)
In-Reply-To: <20200511072140.29610-16-a.fatoum@pengutronix.de>
On Mon, May 11, 2020 at 09:21:32AM +0200, Ahmad Fatoum wrote:
> For easier code-sharing, the UBIFS code still uses the Kernel's
> atomic accessors. Provide a sandbox <asm/atomic.h> header, so we
> can compile-test UBI under sandbox.
>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
> arch/sandbox/include/asm/atomic.h | 11 +++++++++++
> arch/sandbox/include/asm/system.h | 14 ++++++++++++++
> 2 files changed, 25 insertions(+)
> create mode 100644 arch/sandbox/include/asm/atomic.h
> create mode 100644 arch/sandbox/include/asm/system.h
>
> diff --git a/arch/sandbox/include/asm/atomic.h b/arch/sandbox/include/asm/atomic.h
> new file mode 100644
> index 000000000000..ef1043493b8f
> --- /dev/null
> +++ b/arch/sandbox/include/asm/atomic.h
> @@ -0,0 +1,11 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2020 Ahmad Fatoum
> + */
> +#ifndef __ASM_SANDBOX_ATOMIC_H
> +#define __ASM_SANDBOX_ATOMIC_H
> +
> +#include <asm/system.h>
> +#include <asm-generic/atomic.h>
> +
> +#endif
> diff --git a/arch/sandbox/include/asm/system.h b/arch/sandbox/include/asm/system.h
> new file mode 100644
> index 000000000000..a9b99b07b9a6
> --- /dev/null
> +++ b/arch/sandbox/include/asm/system.h
> @@ -0,0 +1,14 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2020 Ahmad Fatoum
> + */
> +#ifndef __ASM_SANDBOX_SYSTEM_H
> +#define __ASM_SANDBOX_SYSTEM_H
> +
> +#define local_irq_enable() do { } while (0)
> +#define local_irq_disable() do { } while (0)
> +#define local_save_flags(x) do { (void)x; } while (0)
> +#define local_irq_save(x) do { (void)x; } while (0)
> +#define local_irq_restore(x) do { (void)x; } while (0)
Now we have generic atomic_* functions, but they are only usable on
architectures providing local_irq_* functions, which on barebox are by
definition empty. Why not simply drop the local_irq_* functions
entirely?
Sascha
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next prev parent reply other threads:[~2020-05-12 7:26 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 7:21 [PATCH 00/23] sandbox: support COMPILE_TESTing drivers Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 01/23] scripts: import Linux Kconfig.include Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 02/23] sandbox: define CONFIG_64BIT as appropriate Ahmad Fatoum
2020-05-11 10:00 ` Roland Hieber
2020-05-12 7:14 ` Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 03/23] sandbox: asm: bitsperlong.h: detect bitness according to 64BIT symbol Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 04/23] include: io.h: provide (in|out)_(le|be)(16|32) helpers for all archs Ahmad Fatoum
2020-05-12 7:11 ` Sascha Hauer
2020-05-12 7:13 ` Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 05/23] ARM: asm/io.h: fall back to asm-generic out_be32 and friends Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 06/23] clocksource: arm_global_timer.c: remove unused asm/ header Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 07/23] mtd: nand: orion: depend on ARM Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 08/23] ddr: fsl: " Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 09/23] net: fec_imx: depend on HAS_DMA Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 10/23] net: macb: " Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 11/23] sandbox: implement stub physical virtual translation Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 12/23] sandbox: asm: implement stub DMA functions Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 13/23] sandbox: select HAS_DMA Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 14/23] ARM: atomic.h: move generic implementation to asm-generic Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 15/23] sandbox: asm: implement <asm/atomic.h> Ahmad Fatoum
2020-05-12 7:26 ` Sascha Hauer [this message]
2020-05-11 7:21 ` [PATCH 16/23] sandbox: support forcing 32-bit x86 Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 17/23] usb: xhci-hcd: remove unused #include <asm/cache.h> Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 18/23] usb: xhci-hcd: replace opencoded non-atomic 64-bit MMIO with lo_hi helper Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 19/23] include: bitops: fix dead increment in fls() and ffs() Ahmad Fatoum
2020-05-12 7:31 ` Sascha Hauer
2020-05-11 7:21 ` [PATCH 20/23] commands: tftp: drop unused variable Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 21/23] commands: test: drop dead assignment Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 22/23] sandbox: os: add_image: fix memory leak Ahmad Fatoum
2020-05-11 7:21 ` [PATCH 23/23] mtd: nand: base: fix use of uninitialized struct member Ahmad Fatoum
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