5.15-stable review patch. If anyone has any objections, please let me know.
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From: Bjorn Helgaas bhelgaas@google.com
[ Upstream commit 8f6707d0773be31972768abd6e0bf7b8515b5b1a ]
The PCIe Capability is defined by the PCIe spec, so use the PCI_EXP_DEVCTL macros defined by the PCI core instead of defining copies in IOAT. This makes it easier to find all uses of the PCIe Device Control register. No functional change intended.
Signed-off-by: Bjorn Helgaas bhelgaas@google.com Acked-by: Dave Jiang dave.jiang@intel.com Link: https://lore.kernel.org/r/20230307214615.887354-1-helgaas@kernel.org Signed-off-by: Vinod Koul vkoul@kernel.org Stable-dep-of: f0dc9fda2e0e ("dmaengine: ioatdma: Fix error path in ioat3_dma_probe()") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/ioat/init.c | 6 +++--- drivers/dma/ioat/registers.h | 7 ------- 2 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c index 6c27980a5ec8f..ed4910e3bc2ac 100644 --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1190,13 +1190,13 @@ static int ioat3_dma_probe(struct ioatdma_device *ioat_dma, int dca) ioat_dma->dca = ioat_dca_init(pdev, ioat_dma->reg_base);
/* disable relaxed ordering */ - err = pcie_capability_read_word(pdev, IOAT_DEVCTRL_OFFSET, &val16); + err = pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &val16); if (err) return pcibios_err_to_errno(err);
/* clear relaxed ordering enable */ - val16 &= ~IOAT_DEVCTRL_ROE; - err = pcie_capability_write_word(pdev, IOAT_DEVCTRL_OFFSET, val16); + val16 &= ~PCI_EXP_DEVCTL_RELAX_EN; + err = pcie_capability_write_word(pdev, PCI_EXP_DEVCTL, val16); if (err) return pcibios_err_to_errno(err);
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h index f55a5f92f1857..54cf0ad39887b 100644 --- a/drivers/dma/ioat/registers.h +++ b/drivers/dma/ioat/registers.h @@ -14,13 +14,6 @@ #define IOAT_PCI_CHANERR_INT_OFFSET 0x180 #define IOAT_PCI_CHANERRMASK_INT_OFFSET 0x184
-/* PCIe config registers */ - -/* EXPCAPID + N */ -#define IOAT_DEVCTRL_OFFSET 0x8 -/* relaxed ordering enable */ -#define IOAT_DEVCTRL_ROE 0x10 - /* MMIO Device Registers */ #define IOAT_CHANCNT_OFFSET 0x00 /* 8-bit */