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Message-ID: <ZTFBi7vfmEpR9TB0@yilunxu-OptiPlex-7050>
Date: Thu, 19 Oct 2023 22:47:39 +0800
From: Xu Yilun <yilun.xu@...ux.intel.com>
To: gregkh@...uxfoundation.org, Marco Pagani <marpagan@...hat.com>
Cc: Moritz Fischer <mdf@...nel.org>, Wu Hao <hao.wu@...el.com>,
Xu Yilun <yilun.xu@...el.com>, Tom Rix <trix@...hat.com>,
linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fpga: disable KUnit test suites when module support is
enabled
On Wed, Oct 18, 2023 at 06:38:13PM +0200, Marco Pagani wrote:
> The fpga core currently assumes that all manager, bridge, and region
> devices have a parent device associated with a driver that can be used
> to take the module's refcount. This behavior causes the fpga test suites
> to crash with a null-ptr-deref since parent fake devices do not have a
> driver. This patch disables all fpga KUnit test suites when loadable
> module support is enabled until the fpga core is fixed. Test suites
> can still be run using the KUnit default UML kernel.
>
> Signed-off-by: Marco Pagani <marpagan@...hat.com>
LGTM, I've tested on my machine.
Acked-by: Xu Yilun <yilun.xu@...el.com>
Hi Greg:
Could you help review and pull it in for 6.6-final if it's OK.
https://lore.kernel.org/linux-fpga/2023101825-ligament-undergrad-cc4d@gregkh/
Thanks,
Yilun
> ---
> drivers/fpga/tests/Kconfig | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/fpga/tests/Kconfig b/drivers/fpga/tests/Kconfig
> index e4a64815f16d..d4e55204c092 100644
> --- a/drivers/fpga/tests/Kconfig
> +++ b/drivers/fpga/tests/Kconfig
> @@ -1,6 +1,6 @@
> config FPGA_KUNIT_TESTS
> - tristate "KUnit test for the FPGA subsystem" if !KUNIT_ALL_TESTS
> - depends on FPGA && FPGA_REGION && FPGA_BRIDGE && KUNIT=y
> + bool "KUnit test for the FPGA subsystem" if !KUNIT_ALL_TESTS
> + depends on FPGA=y && FPGA_REGION=y && FPGA_BRIDGE=y && KUNIT=y && MODULES=n
> default KUNIT_ALL_TESTS
> help
> This builds unit tests for the FPGA subsystem
> --
> 2.41.0
>
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