We wanted to add RISC-V to the list of architectures that used the
generic PCI setup-irq.o inside the Makefile and it was suggested that
instead we define a Kconfig entry and use that.

I've done very minimal testing on this: I just checked to see that
an aarch64 defconfig still build setup-irq.o with the patch applied.
The intention is that this patch doesn't change the behavior of any
build.

Signed-off-by: Palmer Dabbelt <pal...@dabbelt.com>
---
 arch/alpha/Kconfig     |  1 +
 arch/arc/Kconfig       |  1 +
 arch/arm/Kconfig       |  1 +
 arch/arm64/Kconfig     |  1 +
 arch/m68k/Kconfig      |  1 +
 arch/mips/Kconfig      |  1 +
 arch/sh/Kconfig        |  1 +
 arch/sparc/Kconfig     |  1 +
 arch/tile/Kconfig      |  1 +
 arch/unicore32/Kconfig |  1 +
 drivers/pci/Kconfig    |  3 +++
 drivers/pci/Makefile   | 11 +----------
 12 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 0e49d39ea74a..30f4e711f681 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -26,6 +26,7 @@ config ALPHA
        select ODD_RT_SIGACTION
        select OLD_SIGSUSPEND
        select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+       select PCI_GENERIC_SETUP
        help
          The Alpha is a 64-bit general-purpose processor designed and
          marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a5459698f0ee..dd1f64858118 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -44,6 +44,7 @@ config ARC
        select HAVE_GENERIC_DMA_COHERENT
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_LZMA
+       select PCI_GENERIC_SETUP
 
 config MIGHT_HAVE_PCI
        bool
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4c1a35f15838..86872246951c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -96,6 +96,7 @@ config ARM
        select PERF_USE_VMALLOC
        select RTC_LIB
        select SYS_SUPPORTS_APM_EMULATION
+       select PCI_GENERIC_SETUP
        # Above selects are sorted alphabetically; please add new ones
        # according to that.  Thanks.
        help
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b2024db225a9..6c684d8c8816 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -115,6 +115,7 @@ config ARM64
        select SPARSE_IRQ
        select SYSCTL_EXCEPTION_TRACE
        select THREAD_INFO_IN_TASK
+       select PCI_GENERIC_SETUP
        help
          ARM 64-bit (AArch64) Linux support.
 
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206d5d29..c16214344f1c 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -22,6 +22,7 @@ config M68K
        select MODULES_USE_ELF_RELA
        select OLD_SIGSUSPEND3
        select OLD_SIGACTION
+       select PCI_GENERIC_SETUP
 
 config RWSEM_GENERIC_SPINLOCK
        bool
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2828ecde133d..474a7c710686 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -70,6 +70,7 @@ config MIPS
        select HAVE_EXIT_THREAD
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_COPY_THREAD_TLS
+       select PCI_GENERIC_SETUP
 
 menu "Machine selection"
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ee086958b2b2..90a98ac526fb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -48,6 +48,7 @@ config SUPERH
        select HAVE_ARCH_AUDITSYSCALL
        select HAVE_FUTEX_CMPXCHG if FUTEX
        select HAVE_NMI
+       select PCI_GENERIC_SETUP
        help
          The SuperH is a RISC processor targeted for use in embedded systems
          and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5639c9fe5b55..24cea64104bd 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -424,6 +424,7 @@ config SPARC_LEON
        depends on SPARC32
        select USB_EHCI_BIG_ENDIAN_MMIO
        select USB_EHCI_BIG_ENDIAN_DESC
+       select PCI_GENERIC_SETUP
        ---help---
          If you say Y here if you are running on a SPARC-LEON processor.
          The LEON processor is a synthesizable VHDL model of the
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 4583c0320059..6679af85a882 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -33,6 +33,7 @@ config TILE
        select USER_STACKTRACE_SUPPORT
        select USE_PMC if PERF_EVENTS
        select VIRT_TO_BUS
+       select PCI_GENERIC_SETUP
 
 config MMU
        def_bool y
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066929c6..162a7d3def0c 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -18,6 +18,7 @@ config UNICORE32
        select ARCH_WANT_FRAME_POINTERS
        select GENERIC_IOMAP
        select MODULES_USE_ELF_REL
+       select PCI_GENERIC_SETUP
        help
          UniCore-32 is 32-bit Instruction Set Architecture,
          including a series of low-power-consumption RISC chip
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index e0cacb7b8563..658c9f95ab3f 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -131,6 +131,9 @@ config PCI_HYPERV
           The PCI device frontend driver allows the kernel to import arbitrary
           PCI devices from a PCI backend to support PCI driver domains.
 
+config PCI_GENERIC_SETUP
+       def_bool n
+
 source "drivers/pci/hotplug/Kconfig"
 source "drivers/pci/dwc/Kconfig"
 source "drivers/pci/host/Kconfig"
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 462c1f5f5546..26f4710c88ec 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -31,16 +31,7 @@ obj-$(CONFIG_PCI_IOV) += iov.o
 #
 # Some architectures use the generic PCI setup functions
 #
-obj-$(CONFIG_ALPHA) += setup-irq.o
-obj-$(CONFIG_ARC) += setup-irq.o
-obj-$(CONFIG_ARM) += setup-irq.o
-obj-$(CONFIG_ARM64) += setup-irq.o
-obj-$(CONFIG_UNICORE32) += setup-irq.o
-obj-$(CONFIG_SUPERH) += setup-irq.o
-obj-$(CONFIG_MIPS) += setup-irq.o
-obj-$(CONFIG_TILE) += setup-irq.o
-obj-$(CONFIG_SPARC_LEON) += setup-irq.o
-obj-$(CONFIG_M68K) += setup-irq.o
+obj-$(CONFIG_PCI_GENERIC_SETUP) += setup-irq.o
 
 #
 # ACPI Related PCI FW Functions
-- 
2.13.0


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