Messages in this thread Patch in this message | | | From | Randy Dunlap <> | Subject | [PATCH v2] powerpc: iommu: fix build when neither PCI or IBMVIO is set | Date | Sun, 4 Apr 2021 12:26:23 -0700 |
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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") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Cc: Anton Blanchard <anton@samba.org> --- I was supposed to update this about one month ago, but then I lost some email and also took a break for a few weeks, then I remembered, so here it is.
arch/powerpc/Kconfig.debug | 1 + 1 file changed, 1 insertion(+)
--- lnx-512-rc1.orig/arch/powerpc/Kconfig.debug +++ lnx-512-rc1/arch/powerpc/Kconfig.debug @@ -353,6 +353,7 @@ 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.
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