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List: linux-pci
Subject: [PATCH v4 00/10] PCI: Add and use constant PCI_STATUS_ERROR_BITS and helper pci_status_get_and_clear
From: Heiner Kallweit <hkallweit1 () gmail ! com>
Date: 2020-02-29 22:19:13
Message-ID: adeb9e6e-9be6-317f-3fc0-a4e6e6af5f81 () gmail ! com
[Download RAW message or body]
Several drivers have own definitions for this constant, so move it
to the PCI core. In addition in multiple places the following code
sequence is used:
1. Read PCI_STATUS
2. Mask out non-error bits
3. Action based on set error bits
4. Write back set error bits to clear them
As this is a repeated pattern, add a helper to the PCI core.
Most affected drivers are network drivers. But as it's about core
PCI functionality, I suppose the series should go through the PCI
tree.
v2:
- fix formal issue with cover letter
v3:
- fix dumb typo in patch 7
v4:
- add patches 1-3
- move new constant PCI_STATUS_ERROR_BITS to include/linux/pci.h
- small improvements in commit messages
Heiner Kallweit (10):
net: marvell: add PCI_STATUS_SIG_TARGET_ABORT to PCI status error bits
net: skfp: add PCI_STATUS_REC_TARGET_ABORT to PCI status error bits
r8169: add PCI_STATUS_PARITY to PCI status error bits
PCI: Add constant PCI_STATUS_ERROR_BITS
PCI: Add pci_status_get_and_clear_errors
r8169: use pci_status_get_and_clear_errors
net: sun: use pci_status_get_and_clear_errors
net: skfp: use new constant PCI_STATUS_ERROR_BITS
PCI: pci-bridge-emul: Use new constant PCI_STATUS_ERROR_BITS
sound: bt87x: use pci_status_get_and_clear_errors
drivers/net/ethernet/marvell/skge.h | 6 -----
drivers/net/ethernet/marvell/sky2.h | 6 -----
drivers/net/ethernet/realtek/r8169_main.c | 15 +++++-------
drivers/net/ethernet/sun/cassini.c | 28 ++++++++-------------
drivers/net/ethernet/sun/sungem.c | 30 +++++++----------------
drivers/net/fddi/skfp/drvfbi.c | 4 +--
drivers/net/fddi/skfp/h/skfbi.h | 5 ----
drivers/pci/pci-bridge-emul.c | 14 ++---------
drivers/pci/pci.c | 23 +++++++++++++++++
include/linux/pci.h | 8 ++++++
sound/pci/bt87x.c | 7 +-----
11 files changed, 61 insertions(+), 85 deletions(-)
--
2.25.1
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