From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lorenzo Pieralisi Subject: Re: [PATCH] PCI: rockchip: fix bitwise operations on status and ROCKCHIP_PCIE_EP_CMD_STATUS_IS Date: Mon, 15 Apr 2019 11:03:01 +0100 Message-ID: <20190415100301.GA12127@red-moon> References: <20190330150910.9389-1-colin.king@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190330150910.9389-1-colin.king@canonical.com> Sender: linux-kernel-owner@vger.kernel.org To: Colin King Cc: Bjorn Helgaas , Heiko Stuebner , linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, Shawn Lin List-Id: linux-rockchip.vger.kernel.org On Sat, Mar 30, 2019 at 03:09:10PM +0000, Colin King wrote: > From: Colin Ian King > > 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. (Not tested). > > Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") > Signed-off-by: Colin Ian King > --- > drivers/pci/controller/pcie-rockchip-ep.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Applied to pci/rockchip for v5.2, thanks. Lorenzo > diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c > index a5d799e2dff2..d743b0a48988 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 >