Messages in this thread Patch in this message |  | | From | Jisheng Zhang <> | Subject | [PATCH v2 03/13] riscv: cpufeature: detect RISCV_ALTERNATIVES_EARLY_BOOT earlier | Date | Mon, 5 Dec 2022 01:46:22 +0800 |
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Now, the riscv_cpufeature_patch_func() do nothing in the stage of RISCV_ALTERNATIVES_EARLY_BOOT. We can move the detection of "early boot" stage earlier.
In following patch, we will make riscv_cpufeature_patch_func() scans all ISA extensions.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> --- arch/riscv/kernel/cpufeature.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 364d1fe86bea..a4d2af67e05c 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -305,6 +305,9 @@ void __init_or_module riscv_cpufeature_patch_func(struct alt_entry *begin, struct alt_entry *alt; u32 tmp; + if (stage == RISCV_ALTERNATIVES_EARLY_BOOT) + return; + for (alt = begin; alt < end; alt++) { if (alt->vendor_id != 0) continue; -- 2.37.2
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