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Message-ID: <alpine.DEB.2.21.9999.1908061929230.19468@viisi.sifive.com> Date: Tue, 6 Aug 2019 19:30:24 -0700 (PDT) From: Paul Walmsley <paul.walmsley@...ive.com> To: linux-riscv@...ts.infradead.org cc: linux-kernel@...r.kernel.org, atish.patra@....com Subject: [PATCH] riscv: kbuild: drop CONFIG_RISCV_ISA_C The baseline ISA support requirement for the RISC-V Linux kernel mandates compressed instructions, so it doesn't make sense for compressed instruction support to be configurable. Signed-off-by: Paul Walmsley <paul.walmsley@...ive.com> Cc: Atish Patra <atish.patra@....com> --- arch/riscv/Kconfig | 10 ---------- arch/riscv/Makefile | 2 +- 2 files changed, 1 insertion(+), 11 deletions(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 59a4727ecd6c..8c5b9329ec46 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -197,16 +197,6 @@ config TUNE_GENERIC endchoice -config RISCV_ISA_C - bool "Emit compressed instructions when building Linux" - default y - help - Adds "C" to the ISA subsets that the toolchain is allowed to emit - when building Linux, which results in compressed instructions in the - Linux binary. - - If you don't know what to do here, say Y. - menu "supported PMU type" depends on PERF_EVENTS diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 7a117be8297c..e23e066c55e2 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -38,7 +38,7 @@ endif riscv-march-$(CONFIG_ARCH_RV32I) := rv32ima riscv-march-$(CONFIG_ARCH_RV64I) := rv64ima riscv-march-$(CONFIG_FPU) := $(riscv-march-y)fd -riscv-march-$(CONFIG_RISCV_ISA_C) := $(riscv-march-y)c +riscv-march-y := $(riscv-march-y)c KBUILD_CFLAGS += -march=$(subst fd,,$(riscv-march-y)) KBUILD_AFLAGS += -march=$(riscv-march-y) -- 2.22.0
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