linux-kernel - Finish the GENERIC_IRQ_MULTI

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Date:   Thu, 21 Jun 2018 11:17:51 -0700
From:   Palmer Dabbelt <palmer@...ive.com>
To:     tglx@...utronix.de
Cc:     linux@...linux.org.uk, catalin.marinas@....com,
        will.deacon@....com, jonas@...thpole.se,
        stefan.kristiansson@...nalahti.fi, shorne@...il.com,
        tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
        arnd@...db.de, keescook@...omium.org, vladimir.murzin@....com,
        nicolas.pitre@...aro.org, jinb.park7@...il.com,
        yamada.masahiro@...ionext.com, alexandre.belloni@...tlin.com,
        palmer@...ive.com, gregkh@...uxfoundation.org,
        pombredanne@...b.com, kstewart@...uxfoundation.org,
        jhogan@...nel.org, mark.rutland@....com, ard.biesheuvel@...aro.org,
        james.morse@....com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, openrisc@...ts.librecores.org
Subject: Finish the GENERIC_IRQ_MULTI_HANDLER conversion

A while ago I sent a patch set that adds a GENERIC_IRQ_MULTI_HANDLER,
which is an exact copy of the existing IRQ_MULTI_HANDLER support in the
arm port, which is being used unconditionally by arm64 and openrisc.
GENERIC_IRQ_MULTI_HANDLER is currently being used by the RISC-V port.  I
managed to make a few mistakes in my original patch set and as a result
my conversion of the other architectures of GENERIC_IRQ_MULTI_HANDLER
was dropped.

This patch set finishes up my original patch set by converting arm,
arm64, and openrisc over to the new GENERIC_IRQ_MULTI_HANDLER support
and then removing MULTI_IRQ_HANDLER as it's obselete.

At the time I wrote this I gave it fairly extensive build testing, but
went I recently rebased it I just tested the full patch set on arm,
arm64, and openrisc defconfigs.

Various flavors of this patch set have bounced around a few times
before, but I'm calling this a whole new patch set as it builds on top
of what was merged.