[PATCH v3 11/14] powerpc/eeh: Remove class code field from edev

[Oliver O'Halloran]

The edev->class_code field is never referenced anywhere except for the
platform specific probe functions. The same information is available in
the pci_dev for PowerNV and in the pci_dn on pseries so we can remove
the field.

Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
---
v2: no changes
v3: no changes
---
 arch/powerpc/include/asm/eeh.h               | 1 -
 arch/powerpc/platforms/powernv/eeh-powernv.c | 5 ++---
 arch/powerpc/platforms/pseries/eeh_pseries.c | 3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index f8ef27f75c37..79de8624809a 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -133,7 +133,6 @@ static inline bool eeh_pe_passed(struct eeh_pe *pe)
 
 struct eeh_dev {
 	int mode;			/* EEH mode			*/
-	int class_code;			/* Class code of the device	*/
 	int bdfn;			/* bdfn of device (for cfg ops) */
 	struct pci_controller *controller;
 	int pe_config_addr;		/* PE config address		*/
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index c9f2f454d053..7cbb03a97a61 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -372,19 +372,18 @@ static struct eeh_dev *pnv_eeh_probe(struct pci_dev *pdev)
 	}
 
 	/* Skip for PCI-ISA bridge */
-	if ((pdn->class_code >> 8) == PCI_CLASS_BRIDGE_ISA)
+	if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA)
 		return NULL;
 
 	eeh_edev_dbg(edev, "Probing device\n");
 
 	/* Initialize eeh device */
-	edev->class_code = pdn->class_code;
 	edev->mode	&= 0xFFFFFF00;
 	edev->pcix_cap = pnv_eeh_find_cap(pdn, PCI_CAP_ID_PCIX);
 	edev->pcie_cap = pnv_eeh_find_cap(pdn, PCI_CAP_ID_EXP);
 	edev->af_cap   = pnv_eeh_find_cap(pdn, PCI_CAP_ID_AF);
 	edev->aer_cap  = pnv_eeh_find_ecap(pdn, PCI_EXT_CAP_ID_ERR);
-	if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
+	if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
 		edev->mode |= EEH_DEV_BRIDGE;
 		if (edev->pcie_cap) {
 			pnv_pci_cfg_read(pdn, edev->pcie_cap + PCI_EXP_FLAGS,
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index b981332db873..67931fe5f341 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -273,12 +273,11 @@ void pseries_eeh_init_edev(struct pci_dn *pdn)
 	 * correctly reflects that current device is root port
 	 * or PCIe switch downstream port.
 	 */
-	edev->class_code = pdn->class_code;
 	edev->pcix_cap = pseries_eeh_find_cap(pdn, PCI_CAP_ID_PCIX);
 	edev->pcie_cap = pseries_eeh_find_cap(pdn, PCI_CAP_ID_EXP);
 	edev->aer_cap = pseries_eeh_find_ecap(pdn, PCI_EXT_CAP_ID_ERR);
 	edev->mode &= 0xFFFFFF00;
-	if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
+	if ((pdn->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
 		edev->mode |= EEH_DEV_BRIDGE;
 		if (edev->pcie_cap) {
 			rtas_read_config(pdn, edev->pcie_cap + PCI_EXP_FLAGS,
-- 
2.26.2