netdev - [PATCH V0 0/2] Fix CONFIG_HYPERV and vmbus related anamoly

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Message-Id: <20250828005952.884343-1-mrathor@linux.microsoft.com>
Date: Wed, 27 Aug 2025 17:59:50 -0700
From: Mukesh Rathor <mrathor@...ux.microsoft.com>
To: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-hyperv@...r.kernel.org,
	netdev@...r.kernel.org,
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	linux-scsi@...r.kernel.org,
	linux-fbdev@...r.kernel.org,
	linux-arch@...r.kernel.org,
	virtualization@...ts.linux.dev
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Subject: [PATCH V0 0/2] Fix CONFIG_HYPERV and vmbus related anamoly

At present, drivers/Makefile will subst =m to =y for CONFIG_HYPERV for hv
subdir. Also, drivers/hv/Makefile replaces =m to =y to build in
hv_common.c that is needed for the drivers. Moreover, vmbus driver is
built if CONFIG_HYPER is set, either loadable or builtin.

This is not a good approach. CONFIG_HYPERV is really an umbrella config that
encompasses builtin code and various other things and not a dedicated config
option for VMBUS. Vmbus should really have a config option just like
CONFIG_HYPERV_BALLOON etc. This small series introduces CONFIG_HYPERV_VMBUS
to build VMBUS driver and make that distinction explicit. With that
CONFIG_HYPERV could be changed to bool.

For now, hv_common.c is left as is to reduce conflicts for upcoming patches,
but once merges are mostly done, that and some others should be moved to
virt/hyperv directory.

Mukesh Rathor (2):
  hyper-v: Add CONFIG_HYPERV_VMBUS option
  hyper-v: Make CONFIG_HYPERV bool

 drivers/Makefile               |  2 +-
 drivers/gpu/drm/Kconfig        |  2 +-
 drivers/hid/Kconfig            |  2 +-
 drivers/hv/Kconfig             | 14 ++++++++++----
 drivers/hv/Makefile            |  4 ++--
 drivers/input/serio/Kconfig    |  4 ++--
 drivers/net/hyperv/Kconfig     |  2 +-
 drivers/pci/Kconfig            |  2 +-
 drivers/scsi/Kconfig           |  2 +-
 drivers/uio/Kconfig            |  2 +-
 drivers/video/fbdev/Kconfig    |  2 +-
 include/asm-generic/mshyperv.h |  8 +++++---
 net/vmw_vsock/Kconfig          |  2 +-
 13 files changed, 28 insertions(+), 20 deletions(-)

-- 
2.36.1.vfs.0.0