linux-kernel - [RFC PATCH 3/5] powerpc: move pci_iounmap() from iomap.c to pci-common.c

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Date:   Thu, 31 Oct 2019 01:31:52 +0100
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     linux-arch@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     Christophe Leroy <christophe.leroy@....fr>,
        Arnd Bergmann <arnd@...db.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linux-kernel@...r.kernel.org,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: [RFC PATCH 3/5] powerpc: move pci_iounmap() from iomap.c to pci-common.c

As preparation for making iowrite32 and friends static inlines, move
the definition of pci_iounmap() from iomap.c to pci-common.c. This
definition of pci_iounmap() is compiled in when
!CONFIG_PPC_INDIRECT_PIO && CONFIG_PCI - we're just interchanging
which condition is in the Kbuild logic and which is in the .c file.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 arch/powerpc/kernel/iomap.c      | 13 -------------
 arch/powerpc/kernel/pci-common.c | 13 +++++++++++++
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 5ac84efc6ede..b22fa8db5068 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -182,16 +182,3 @@ void ioport_unmap(void __iomem *addr)
 }
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
-
-#ifdef CONFIG_PCI
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
-	if (isa_vaddr_is_ioport(addr))
-		return;
-	if (pcibios_vaddr_is_ioport(addr))
-		return;
-	iounmap(addr);
-}
-
-EXPORT_SYMBOL(pci_iounmap);
-#endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 1c448cf25506..d89a2426b405 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -34,6 +34,7 @@
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>
+#include <asm/isa-bridge.h>
 #include <asm/byteorder.h>
 #include <asm/machdep.h>
 #include <asm/ppc-pci.h>
@@ -295,6 +296,18 @@ int pcibios_vaddr_is_ioport(void __iomem *address)
 	return ret;
 }
 
+#ifndef CONFIG_PPC_INDIRECT_PIO
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+	if (isa_vaddr_is_ioport(addr))
+		return;
+	if (pcibios_vaddr_is_ioport(addr))
+		return;
+	iounmap(addr);
+}
+EXPORT_SYMBOL(pci_iounmap);
+#endif /* CONFIG_PPC_INDIRECT_PIO */
+
 unsigned long pci_address_to_pio(phys_addr_t address)
 {
 	struct pci_controller *hose;
-- 
2.23.0