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| author |   Randy Dunlap <rdunlap@infradead.org> | 2021-04-04 12:26:23 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-14 09:44:28 +0200 |
| commit | 22cb8496f290dfe8113c80f29356c212eeeebc9a (patch) | |
| tree | df0ba11c805857b213453bbb8c67c811b3ede1a3 /arch | |
| parent | powerpc/perf: Fix PMU constraint check for EBB events (diff) | |
| download | wireguard-linux-22cb8496f290dfe8113c80f29356c212eeeebc9a.tar.xz wireguard-linux-22cb8496f290dfe8113c80f29356c212eeeebc9a.zip | |
powerpc: iommu: fix build when neither PCI or IBMVIO is set
[ Upstream commit b27dadecdf9102838331b9a0b41ffc1cfe288154 ]
When neither CONFIG_PCI nor CONFIG_IBMVIO is set/enabled, iommu.c has a
build error. The fault injection code is not useful in that kernel config,
so make the FAIL_IOMMU option depend on PCI || IBMVIO.
Prevents this build error (warning escalated to error):
../arch/powerpc/kernel/iommu.c:178:30: error: 'fail_iommu_bus_notifier' defined but not used [-Werror=unused-variable]
178 | static struct notifier_block fail_iommu_bus_notifier = {
Fixes: d6b9a81b2a45 ("powerpc: IOMMU fault injection")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210404192623.10697-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index b915fe658979..2ca9114fcf00 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -352,6 +352,7 @@ config PPC_EARLY_DEBUG_CPM_ADDR config FAIL_IOMMU bool "Fault-injection capability for IOMMU" depends on FAULT_INJECTION + depends on PCI || IBMVIO help Provide fault-injection capability for IOMMU. Each device can be selectively enabled via the fail_iommu property. |