Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 307/639] PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations | Date | Fri, 24 Jan 2020 10:27:57 +0100 |
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From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit c577f4a5a08bb9677e12ddafb62e2f3a901de87f ]
Currently the bitwise operations on the u16 variable 'status' with the setting ROCKCHIP_PCIE_EP_CMD_STATUS_IS are incorrect because ROCKCHIP_PCIE_EP_CMD_STATUS_IS is 1UL<<19 which is wider than the u16 variable.
Fix this by making status a u32.
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Acked-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/pci/controller/pcie-rockchip-ep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c index b8163c56a142d..caf34661d38d4 100644 --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -350,7 +350,7 @@ static void rockchip_pcie_ep_assert_intx(struct rockchip_pcie_ep *ep, u8 fn, struct rockchip_pcie *rockchip = &ep->rockchip; u32 r = ep->max_regions - 1; u32 offset; - u16 status; + u32 status; u8 msg_code; if (unlikely(ep->irq_pci_addr != ROCKCHIP_PCIE_EP_PCI_LEGACY_IRQ_ADDR || -- 2.20.1
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