linux-kernel - [PATCH v2 0/3] Cleanup MAY_HAVE_SPARSE

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Date:   Wed, 29 Sep 2021 10:35:19 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Thomas Gleixner <tglx@...utronix.de>, Guo Ren <guoren@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>, <linux-sh@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-csky@...r.kernel.org>
CC:     Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH v2 0/3] Cleanup MAY_HAVE_SPARSE_IRQ

Most ARCHs support SPARSE_IRQ, the dynamical and statical irq
description allocation are alternative.

The last user of MAY_HAVE_SPARSE_IRQ is sh/csky, but the sh use
SPARSE_IRQ, MAY_HAVE_SPARSE_IRQ could be kill. and for csky, it
uses statical allocation by default. 

So MAY_HAVE_SPARSE_IRQ seems to be useless, no need to maintain a
separate MAY_HAVE_SPARSE_IRQ config, kill it.

Also cleanup the kernel/irq/Kconfig a little.

v2: 
- drop all the NR_IRQS suggested by Geert
- don' use SPARSE_IRQ for csky by default, suggested by Guo.

Kefeng Wang (3):
  sh: Cleanup about SPARSE_IRQ
  csky: Kill MAY_HAVE_SPARSE_IRQ
  genirq: Cleanup Kconfig

 arch/csky/Kconfig         |  1 -
 arch/sh/Kconfig           |  1 -
 arch/sh/include/asm/irq.h | 11 ---------
 kernel/irq/Kconfig        | 50 ++++++++++++++++-----------------------
 4 files changed, 20 insertions(+), 43 deletions(-)

-- 
2.26.2