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From: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>
To: Nathan Chancellor <nathan@kernel.org>, Mark Brown <broonie@kernel.org>
Cc: Rosen Penev <rosenp@gmail.com>,
	Jisheng Zhang <jszhang@kernel.org>,
	 linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] spi: cadence-xspi: Revert COMPILE_TEST support
Date: Mon, 8 Jun 2026 09:50:30 +0200	[thread overview]
Message-ID: <aiZzqUVahsnD33n8@monoceros> (raw)
In-Reply-To: <20260606-spi-cadence-xspi-revert-compile-testing-v1-1-76219ea378bd@kernel.org>

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Hello,

On Sat, Jun 06, 2026 at 03:26:04PM -0700, Nathan Chancellor wrote:
> Commit 0c5b5c40dc31 ("spi: cadence-xspi: Add COMPILE_TEST support")
> allows this driver to be built for 32-bit platforms, which causes a
> semantic conflict with commit 4954d4eca469 ("spi: cadence-xspi: Support
> 32bit and 64bit slave dma interface"), as readsq() and writesq() are
> only available when targeting 64-bit platforms:
> 
>   drivers/spi/spi-cadence-xspi.c: In function 'cdns_xspi_sdma_read':
>   drivers/spi/spi-cadence-xspi.c:601:25: error: implicit declaration of function 'readsq'; did you mean 'readsl'? [-Wimplicit-function-declaration]
>     601 |                         readsq(src, buf, len >> 3);
>         |                         ^~~~~~
>         |                         readsl
>   drivers/spi/spi-cadence-xspi.c: In function 'cdns_xspi_sdma_write':
>   drivers/spi/spi-cadence-xspi.c:623:25: error: implicit declaration of function 'writesq'; did you mean 'writesl'? [-Wimplicit-function-declaration]
>     623 |                         writesq(dst, buf, len >> 3);
>         |                         ^~~~~~~
>         |                         writesl
> 
> As there are no known 32-bit platforms that use this controller, revert
> compile testing support to restrict the driver to 64-bit platforms to
> avoid burdening the driver with workarounds.

Given this fixes a build failure in next and we're at -rc7 already, it
would be great to get this in.

Fixes: 4954d4eca469 ("spi: cadence-xspi: Support 32bit and 64bit slave dma interface")
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>

Thanks for preparing the patch
Uwe

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  reply	other threads:[~2026-06-08  7:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-06 22:26 [PATCH] spi: cadence-xspi: Revert COMPILE_TEST support Nathan Chancellor
2026-06-08  7:50 ` Uwe Kleine-König [this message]
2026-06-08 10:31 ` Mark Brown
2026-06-08 18:09   ` Nathan Chancellor
2026-06-15  4:30     ` Jisheng Zhang
2026-06-15  5:13       ` Rosen Penev
2026-06-08 12:18 ` Mark Brown

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