Re: [PATCH] dmaengine: xilinx: xdma: Fixes possible threading issue

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Le 27/05/24 - 20:32, Markus Elfring a écrit :
> > The current interrupt handler in xdma.c was using xdma->stop_request
> > before locking the vchan lock.
> 
> 1. Will an additional imperative wording become helpful here?
>    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.10-rc1#n94
> 
> 2. How do you think about to use the summary phrase “Fix data synchronisation in xdma_channel_isr()”?

I changed the commit message and summary in the v2.
 
> 3. Will development interests grow for the usage of a statement like “guard(spin)(&xchan->vchan.lock);”?
>    https://elixir.bootlin.com/linux/v6.10-rc1/source/include/linux/cleanup.h#L124

I don't feel comfortable switching `guard` as the rest of the driver is 
not using it yet. Since this is a fix, I prefer to maintain consistency 
with the style of the rest of the driver.

Thanks,
Louis Chauvet

> 
> Regards,
> Markus
> 

-- 
Louis Chauvet, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com




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