From: Naveen Naidu <naveennaidu479@gmail.com>
To: bhelgaas@google.com
Cc: "Naveen Naidu" <naveennaidu479@gmail.com>,
linux-kernel-mentees@lists.linuxfoundation.org,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Marc Zyngier" <maz@kernel.org>,
"Kishon Vijay Abraham I" <kishon@ti.com>
Subject: [PATCH v2 22/24] PCI: keystone: Use PCI_ERROR_RESPONSE to specify hardware error
Date: Fri, 15 Oct 2021 20:09:03 +0530 [thread overview]
Message-ID: <a5d08c57881d92e0f3fbfc7886be875886f527c9.1634306198.git.naveennaidu479@gmail.com> (raw)
In-Reply-To: <cover.1634306198.git.naveennaidu479@gmail.com>
Include PCI_ERROR_RESPONSE along with 0xffffffff in the comment to
specify a hardware error. This helps finding where MMIO read error
occurs easier to find.
Signed-off-by: Naveen Naidu <naveennaidu479@gmail.com>
---
drivers/pci/controller/dwc/pci-keystone.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 865258d8c53c..25b11610b500 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -748,8 +748,8 @@ static int ks_pcie_config_legacy_irq(struct keystone_pcie *ks_pcie)
#ifdef CONFIG_ARM
/*
* When a PCI device does not exist during config cycles, keystone host gets a
- * bus error instead of returning 0xffffffff. This handler always returns 0
- * for this kind of faults.
+ * bus error instead of returning 0xffffffff (PCI_ERROR_RESPONSE).
+ * This handler always returns 0 for this kind of faults.
*/
static int ks_pcie_fault(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
--
2.25.1
next prev parent reply other threads:[~2021-10-15 14:47 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-15 14:35 [PATCH v2 00/24] Unify PCI error response checking Naveen Naidu
2021-10-15 14:28 ` [PATCH v2 01/24] PCI: Add PCI_ERROR_RESPONSE and it's related definitions Naveen Naidu
2021-10-20 13:24 ` Rob Herring
2021-10-15 14:28 ` [PATCH v2 02/24] PCI: Set error response in config access defines when ops->read() fails Naveen Naidu
2021-10-20 13:41 ` Rob Herring
2021-10-20 13:52 ` Pali Rohár
2021-10-20 15:13 ` Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 03/24] PCI: Unify PCI error response checking Naveen Naidu
2021-10-20 13:13 ` Rob Herring
2021-10-20 15:15 ` Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 04/24] PCI: Remove redundant error fabrication when device read fails Naveen Naidu
2021-10-20 13:42 ` Rob Herring
2021-10-15 14:38 ` [PATCH v2 05/24] PCI: thunder: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 06/24] PCI: iproc: " Naveen Naidu
2021-10-15 16:49 ` Ray Jui
2021-10-15 17:05 ` Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 07/24] PCI: mediatek: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 08/24] PCI: exynos: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 09/24] PCI: histb: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 10/24] PCI: kirin: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 11/24] PCI: aardvark: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 12/24] PCI: mvebu: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 13/24] PCI: altera: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 14/24] PCI: rcar: " Naveen Naidu
2021-10-18 11:32 ` Geert Uytterhoeven
2021-10-18 11:51 ` Naveen Naidu
2021-10-18 12:00 ` Geert Uytterhoeven
2021-10-15 14:38 ` [PATCH v2 15/24] PCI: rockchip: " Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 16/24] PCI/ERR: Use RESPONSE_IS_PCI_ERROR() to check read from hardware Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 17/24] PCI: vmd: " Naveen Naidu
2021-10-15 14:52 ` Naveen Naidu
2021-10-15 14:38 ` [PATCH v2 18/24] PCI: pciehp: " Naveen Naidu
2021-10-15 15:15 ` Naveen Naidu
2021-10-15 14:39 ` [PATCH v2 19/24] PCI/DPC: " Naveen Naidu
2021-10-15 14:39 ` [PATCH v2 20/24] PCI/PME: " Naveen Naidu
2021-10-15 14:39 ` [PATCH v2 21/24] PCI: cpqphp: " Naveen Naidu
2021-10-15 14:39 ` Naveen Naidu [this message]
2021-10-15 14:39 ` [PATCH v2 23/24] PCI: hv: Use PCI_ERROR_RESPONSE to specify hardware read error Naveen Naidu
2021-10-15 14:39 ` [PATCH v2 24/24] PCI: xgene: Use PCI_ERROR_RESPONSE to specify hardware error Naveen Naidu
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