Message-ID: <20241209130632.132074-2-pstanner@redhat.com>
Date: Mon,  9 Dec 2024 14:06:22 +0100
From: Philipp Stanner <pstanner@...hat.com>
To: amien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>,
	Basavaraj Natikar <basavaraj.natikar@....com>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <bentiss@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alex Dubov <oakad@...oo.com>,
	Sudarsana Kalluru <skalluru@...vell.com>,
	Manish Chopra <manishc@...vell.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rasesh Mody <rmody@...vell.com>,
	GR-Linux-NIC-Dev@...vell.com,
	Igor Mitsyanko <imitsyanko@...ntenna.com>,
	Sergey Matyukevich <geomatsi@...il.com>,
	Kalle Valo <kvalo@...nel.org>,
	Sanjay R Mehta <sanju.mehta@....com>,
	Shyam Sundar S K <Shyam-sundar.S-k@....com>,
	Jon Mason <jdmason@...zu.us>,
	Dave Jiang <dave.jiang@...el.com>,
	Allen Hubbe <allenbh@...il.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Juergen Gross <jgross@...e.com>,
	Stefano Stabellini <sstabellini@...nel.org>,
	Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
	Mario Limonciello <mario.limonciello@....com>,
	Chen Ni <nichen@...as.ac.cn>,
	Philipp Stanner <pstanner@...hat.com>,
	Ricky Wu <ricky_wu@...ltek.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Breno Leitao <leitao@...ian.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Kevin Tian <kevin.tian@...el.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Mostafa Saleh <smostafa@...gle.com>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Yi Liu <yi.l.liu@...el.com>,
	Kunwu Chan <chentao@...inos.cn>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	"Dr. David Alan Gilbert" <linux@...blig.org>,
	Ankit Agrawal <ankita@...dia.com>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Eric Auger <eric.auger@...hat.com>,
	Ye Bin <yebin10@...wei.com>
Cc: linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-wireless@...r.kernel.org,
	ntb@...ts.linux.dev,
	linux-pci@...r.kernel.org,
	kvm@...r.kernel.org,
	xen-devel@...ts.xenproject.org
Subject: [PATCH v3 00/11] Remove implicit devres from pci_intx()

@Driver-Maintainers: Your driver might be touched by patch "Remove
devres from pci_intx()". You might want to take a look.

Changes in v3:
  - Add Thomas' RB.

Changes in v2:
  - Drop pci_intx() deprecation patch.
  - ata: Add RB from Sergey and Niklas.
  - wifi: Add AB by Kalle.
  - Drop INTx deprecation patch
  - Drop ALSA / hda_intel patch because pci_intx() was removed from
    there in the meantime.

Changes since the RFC [1]:
  - Add a patch deprecating pci{m}_intx(). (Heiner, Andy, Me)
  - Add Acked-by's already given.
  - Export pcim_intx() as a GPL function. (Alex)
  - Drop patch for rts5280, since this driver will be removed quite
    soon. (Philipp Hortmann, Greg)
  - Use early-return in pci_intx_unmanaged() and pci_intx(). (Andy)

Hi all,

this series removes a problematic feature from pci_intx(). That function
sometimes implicitly uses devres for automatic cleanup. We should get
rid of this implicit behavior.

To do so, a pci_intx() version that is always-managed, and one that is
never-managed are provided. Then, all pci_intx() users are ported to the
version they need. Afterwards, pci_intx() can be cleaned up and the
users of the never-managed version be ported back to pci_intx().

This way we'd get this PCI API consistent again.

Patch "Remove devres from pci_intx()" obviously reverts the previous
patches that made drivers use pci_intx_unmanaged(). But this way it's
easier to review and approve. It also makes sure that each checked out
commit should provide correct behavior, not just the entire series as a
whole.

Merge plan for this is to enter through the PCI tree.

[1] https://lore.kernel.org/all/20241009083519.10088-1-pstanner@redhat.com/


Regards,
P.

Philipp Stanner (11):
  PCI: Prepare removing devres from pci_intx()
  drivers/xen: Use never-managed version of pci_intx()
  net/ethernet: Use never-managed version of pci_intx()
  net/ntb: Use never-managed version of pci_intx()
  misc: Use never-managed version of pci_intx()
  vfio/pci: Use never-managed version of pci_intx()
  PCI: MSI: Use never-managed version of pci_intx()
  ata: Use always-managed version of pci_intx()
  wifi: qtnfmac: use always-managed version of pcim_intx()
  HID: amd_sfh: Use always-managed version of pcim_intx()
  Remove devres from pci_intx()

 drivers/ata/ahci.c                            |  2 +-
 drivers/ata/ata_piix.c                        |  2 +-
 drivers/ata/pata_rdc.c                        |  2 +-
 drivers/ata/sata_sil24.c                      |  2 +-
 drivers/ata/sata_sis.c                        |  2 +-
 drivers/ata/sata_uli.c                        |  2 +-
 drivers/ata/sata_vsc.c                        |  2 +-
 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c        |  4 ++--
 drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c |  2 +-
 .../wireless/quantenna/qtnfmac/pcie/pcie.c    |  2 +-
 drivers/pci/devres.c                          | 24 +++----------------
 drivers/pci/pci.c                             | 16 +++----------
 include/linux/pci.h                           |  1 +
 13 files changed, 18 insertions(+), 45 deletions(-)

-- 
2.47.1

Powered by blists - more mailing lists