From: Christoph Hellwig <hch@xxxxxx> Subject: riscv: only select GENERIC_IOREMAP if MMU support is enabled nommu ioremap is an inline stub in asm-generic/io.h. Link: https://lkml.kernel.org/r/20210825072036.GA29161@xxxxxx Signed-off-by: Christoph Hellwig <hch@xxxxxx> Cc: Nicholas Piggin <npiggin@xxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/riscv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/riscv/Kconfig~riscv-only-select-generic_ioremap-if-mmu-support-is-enabled +++ a/arch/riscv/Kconfig @@ -48,7 +48,7 @@ config RISCV select GENERIC_CLOCKEVENTS_BROADCAST if SMP select GENERIC_EARLY_IOREMAP select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO - select GENERIC_IOREMAP + select GENERIC_IOREMAP if MMU select GENERIC_IRQ_MULTI_HANDLER select GENERIC_IRQ_SHOW select GENERIC_LIB_DEVMEM_IS_ALLOWED _