Re: [PATCH 0/3] Cleanup MAY_HAVE_SPARSE_IRQ

On 2021/9/28 13:08, Guo Ren wrote:

On Mon, Sep 27, 2021 at 4:11 PM Kefeng Wang [off-list ref] wrote:

quoted

Most ARCHs support SPARSE_IRQ, and MAY_HAVE_SPARSE_IRQ is useless, and
only sh and csky select it, but the could use SPARSE_IRQ too, let's
kill MAY_HAVE_SPARSE_IRQ, also cleanup the kernel/irq/Kconfig a little.

Can you elaborate the reason on why we need to kill MAY_HAVE_SPARSE_IRQ?
What are the benefits after the patch? (As you know we couldn't drop
"!SPARSE_IRQ".)

If csky want to keep MAY_HAVE_SPARSE_IRQ, then I won't kill it, or no 
one use it,

then cleanup it.