netdev - [PATCH 0/2] PCI: Add and use pcim_iomap

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Date: Wed, 27 Mar 2024 12:52:06 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
 Realtek linux nic maintainers <nic_swsd@...ltek.com>,
 Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 Eric Dumazet <edumazet@...gle.com>, David Miller <davem@...emloft.net>
Cc: "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH 0/2] PCI: Add and use pcim_iomap_region()

Several drivers use the following sequence for a single BAR:
rc = pcim_iomap_regions(pdev, BIT(bar), name);
if (rc)
	error;
addr = pcim_iomap_table(pdev)[bar];

Let's create a simpler (from implementation and usage perspective)
pcim_iomap_region() for this use case.

Note: The check for !pci_resource_len() is included in
pcim_iomap(), so we don't have to duplicate it.

Make r8169 the first user of the new function.

I'd prefer to handle this via the PCI tree.

Heiner Kallweit (2):
  PCI: Add pcim_iomap_region
  r8169: use new function pcim_iomap_region()

 drivers/net/ethernet/realtek/r8169_main.c |  8 +++----
 drivers/pci/devres.c                      | 28 +++++++++++++++++++++++
 include/linux/pci.h                       |  2 ++
 3 files changed, 33 insertions(+), 5 deletions(-)

-- 
2.44.0