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authorThomas Gleixner <tglx@linutronix.de>2020-08-26 13:17:02 +0200
committerThomas Gleixner <tglx@linutronix.de>2020-09-16 16:52:37 +0200
commit077ee78e392869e46ae6bdc6ba2a3c4249d0b5e1 (patch)
tree023c1687261dd5cd2453506fc8001d8af5410c96 /arch/sparc
parent2c681e6b37674dc3941869cb262e26c8a6b34047 (diff)
PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable
The arch_.*_msi_irq[s] fallbacks are compiled in whether an architecture requires them or not. Architectures which are fully utilizing hierarchical irq domains should never call into that code. It's not only architectures which depend on that by implementing one or more of the weak functions, there is also a bunch of drivers which relies on the weak functions which invoke msi_controller::setup_irq[s] and msi_controller::teardown_irq. Make the architectures and drivers which rely on them select them in Kconfig and if not selected replace them by stub functions which emit a warning and fail the PCI/MSI interrupt allocation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20200826112333.992429909@linutronix.de
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index efeff2c896a5..21a3239870c0 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -43,6 +43,7 @@ config SPARC
select GENERIC_STRNLEN_USER
select MODULES_USE_ELF_RELA
select PCI_SYSCALL if PCI
+ select PCI_MSI_ARCH_FALLBACKS
select ODD_RT_SIGACTION
select OLD_SIGSUSPEND
select CPU_NO_EFFICIENT_FFS