linux-kernel - [PATCH 3/3] PCI/AER: Use explicit register sizes for struct members

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Message-Id: <20231206224231.732765-4-helgaas@kernel.org>
Date:   Wed,  6 Dec 2023 16:42:31 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     linux-pci@...r.kernel.org
Cc:     Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
        Oliver O'Halloran <oohall@...il.com>,
        Robert Richter <rrichter@....com>,
        Terry Bowman <terry.bowman@....com>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 3/3] PCI/AER: Use explicit register sizes for struct members

From: Bjorn Helgaas <bhelgaas@...gle.com>

aer_irq() reads the AER Root Error Status and Error Source Identification
(PCI_ERR_ROOT_STATUS and PCI_ERR_ROOT_ERR_SRC) registers directly into
struct aer_err_source.  Both registers are 32 bits, so declare the members
explicitly as "u32" instead of "unsigned int".

Similarly, aer_get_device_error_info() reads the AER Header Log
(PCI_ERR_HEADER_LOG) registers, which are also 32 bits, into struct
aer_header_log_regs.  Declare those members as "u32" as well.

No functional changes intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 drivers/pci/pcie/aer.c | 4 ++--
 include/linux/aer.h    | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 2ff6bac9979f..60f84414ec2a 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -41,8 +41,8 @@
 #define AER_MAX_TYPEOF_UNCOR_ERRS	27	/* as per PCI_ERR_UNCOR_STATUS*/
 
 struct aer_err_source {
-	unsigned int status;
-	unsigned int id;
+	u32 status;			/* PCI_ERR_ROOT_STATUS */
+	u32 id;				/* PCI_ERR_ROOT_ERR_SRC */
 };
 
 struct aer_rpc {
diff --git a/include/linux/aer.h b/include/linux/aer.h
index f6ea2f57d808..ae0fae70d4bd 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -19,10 +19,10 @@
 struct pci_dev;
 
 struct aer_header_log_regs {
-	unsigned int dw0;
-	unsigned int dw1;
-	unsigned int dw2;
-	unsigned int dw3;
+	u32 dw0;
+	u32 dw1;
+	u32 dw2;
+	u32 dw3;
 };
 
 struct aer_capability_regs {
-- 
2.34.1