linux-kernel - [PATCH 0/1] nvme: remove CONFIG_NVME

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Message-ID: <20241121220235.40576-1-bgurney@redhat.com>
Date: Thu, 21 Nov 2024 17:02:35 -0500
From: Bryan Gurney <bgurney@...hat.com>
To: linux-kernel@...r.kernel.org,
	linux-nvme@...ts.infradead.org,
	kbusch@...nel.org,
	hch@....de,
	sagi@...mberg.me,
	axboe@...nel.dk,
	mpe@...erman.id.au,
	naveen@...nel.org,
	maddy@...ux.ibm.com,
	kernel@...0n.name
Cc: jmeneghi@...hat.com,
	bmarzins@...hat.com,
	Bryan Gurney <bgurney@...hat.com>
Subject: [PATCH 0/1] nvme: remove CONFIG_NVME_MULTIPATH

Device-mapper multipath will no longer be operating on NVMe devices,
so the nvme.core.multipath module parameter can be removed.  This
series also removes the CONFIG_NVME_MULTIPATH kconfig option.

This was tested on the nvme-6.13 branch (currently showing version
6.12-rc4), with particular attention to tests nvme/033-036, and
nvme/039.  These tests still passed after the removal of the
CONFIG_NVME_MULTIPATH parameter (the tests use an "rc" function,
_require_test_dev_is_not_nvme_multipath, that checks for
"nvme-subsystem" in $TEST_DEV_SYSFS, so they do not check for the
existence of CONFIG_NVME_MULTIPATH).

The blktests test nvme/005 checks for the module parameter value of
"nvme_core multipath", but this test gets skipped after this patch.

Bryan Gurney (1):
  nvme: always enable multipath

 arch/loongarch/configs/loongson3_defconfig |  1 -
 arch/powerpc/configs/skiroot_defconfig     |  1 -
 drivers/nvme/host/Kconfig                  |  9 --
 drivers/nvme/host/Makefile                 |  3 +-
 drivers/nvme/host/core.c                   | 17 +---
 drivers/nvme/host/ioctl.c                  |  3 +-
 drivers/nvme/host/multipath.c              | 10 +--
 drivers/nvme/host/nvme.h                   | 97 +---------------------
 drivers/nvme/host/sysfs.c                  |  6 --
 9 files changed, 7 insertions(+), 140 deletions(-)

-- 
2.45.2