Re: [PATCH -fixes] dma-mapping: add default implementation to arch_dma_{set|clear}_uncached

[Christoph Hellwig]

On Tue, Jul 09, 2024 at 07:39:29PM +0800, Yangyu Chen wrote:
> The reason is that some optimizations failed to apply after adding
> some passes. I will fix the compiler later. Whatever, we should not
> rely on this optimization to get the code being successfully compiled.

The Linux kernel relies on constant propagation and dead code
eliminiation a lot to make code simpler and more readable.