linux-kernel - sparc32 defconfig build broken due to commit ebd97be63 (PCI: remove ARCH_SUPPORTS

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Date:	Sun, 08 Sep 2013 18:00:30 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	sparclinux@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: sparc32 defconfig build broken due to commit ebd97be63 (PCI: remove
 ARCH_SUPPORTS_MSI kconfig option)

Hi,

"make ARCH=sparc32 defconfig; make ARCH=sparc32" on the current upstream kernel results in:

In file included from arch/sparc/kernel/pci_msi.c:10:0:
arch/sparc/kernel/pci_impl.h:142:18: error: field 'stc' has incomplete type
arch/sparc/kernel/pci_msi.c: In function 'sparc64_setup_msi_irq':
arch/sparc/kernel/pci_msi.c:131:2: error: implicit declaration of function 'irq_alloc' [-Werror=implicit-function-declaration]
arch/sparc/kernel/pci_msi.c:173:2: error: implicit declaration of function 'irq_free' [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
make[2]: *** [arch/sparc/kernel/pci_msi.o] Error 1

Bisect points to commit ebd97be635 (PCI: remove ARCH_SUPPORTS_MSI kconfig option).
After reverting this commit, sparc32:defconfig builds fine.

sparc64 defconfig is unaffected.

Guenter
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