linux-kernel - [PATCH v3 3/8] powerpc/fsl_uli1575: Simplify uli_exclude

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Date:   Sun,  9 Apr 2023 02:08:07 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Nicholas Piggin <npiggin@...il.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/8] powerpc/fsl_uli1575: Simplify uli_exclude_device() usage

Function uli_exclude_device() is called only from mpc86xx_exclude_device()
and mpc85xx_exclude_device() functions. Both those functions are same, so
merge its logic directly into the uli_exclude_device() function.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 arch/powerpc/platforms/85xx/mpc85xx_ds.c   | 13 +------------
 arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 13 +------------
 arch/powerpc/platforms/fsl_uli1575.c       |  4 +++-
 3 files changed, 5 insertions(+), 25 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 0c905a838942..581b5f0ef3be 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -107,17 +107,6 @@ void __init mpc85xx_ds_pic_init(void)
 #endif	/* CONFIG_PPC_I8259 */
 }
 
-#ifdef CONFIG_PCI
-static int mpc85xx_exclude_device(struct pci_controller *hose,
-				   u_char bus, u_char devfn)
-{
-	if (hose->dn == fsl_pci_primary)
-		return uli_exclude_device(hose, bus, devfn);
-
-	return PCIBIOS_SUCCESSFUL;
-}
-#endif	/* CONFIG_PCI */
-
 static void __init mpc85xx_ds_uli_init(void)
 {
 #ifdef CONFIG_PCI
@@ -132,7 +121,7 @@ static void __init mpc85xx_ds_uli_init(void)
 		node = pci_with_uli;
 
 		if (pci_with_uli == fsl_pci_primary) {
-			ppc_md.pci_exclude_device = mpc85xx_exclude_device;
+			ppc_md.pci_exclude_device = uli_exclude_device;
 			break;
 		}
 	}
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 3dbd396a0df5..645125cc8420 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -39,17 +39,6 @@
 #define DBG(fmt...) do { } while(0)
 #endif
 
-#ifdef CONFIG_PCI
-static int mpc86xx_exclude_device(struct pci_controller *hose,
-				   u_char bus, u_char devfn)
-{
-	if (hose->dn == fsl_pci_primary)
-		return uli_exclude_device(hose, bus, devfn);
-
-	return PCIBIOS_SUCCESSFUL;
-}
-#endif /* CONFIG_PCI */
-
 
 static void __init
 mpc86xx_hpcn_setup_arch(void)
@@ -58,7 +47,7 @@ mpc86xx_hpcn_setup_arch(void)
 		ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
 
 #ifdef CONFIG_PCI
-	ppc_md.pci_exclude_device = mpc86xx_exclude_device;
+	ppc_md.pci_exclude_device = uli_exclude_device;
 #endif
 
 	printk("MPC86xx HPCN board from Freescale Semiconductor\n");
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index a32f9cef7845..1350db0b935d 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -15,6 +15,8 @@
 #include <asm/pci-bridge.h>
 #include <asm/ppc-pci.h>
 
+#include <sysdev/fsl_pci.h>
+
 #define ULI_PIRQA	0x08
 #define ULI_PIRQB	0x09
 #define ULI_PIRQC	0x0a
@@ -344,7 +346,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5288, hpcd_final_uli5288);
 
 int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn)
 {
-	if (bus == (hose->first_busno + 2)) {
+	if (hose->dn == fsl_pci_primary && bus == (hose->first_busno + 2)) {
 		/* exclude Modem controller */
 		if ((PCI_SLOT(devfn) == 29) && (PCI_FUNC(devfn) == 1))
 			return PCIBIOS_DEVICE_NOT_FOUND;
-- 
2.20.1