From d40c3847b485acc3522b62b020f77dcd38ca357f Mon Sep 17 00:00:00 2001 From: Pu Lehui Date: Tue, 21 Feb 2023 22:06:56 +0800 Subject: [PATCH] riscv, bpf: Add kfunc support for RV64 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This patch adds kernel function call support for RV64. Since the offset from RV64 kernel and module functions to bpf programs is almost within the range of s32, the current infrastructure of RV64 is already sufficient for kfunc, so let's turn it on. Suggested-by: Björn Töpel Signed-off-by: Pu Lehui Acked-by: Björn Töpel Link: https://lore.kernel.org/r/20230221140656.3480496-1-pulehui@huaweicloud.com Signed-off-by: Alexei Starovoitov --- arch/riscv/net/bpf_jit_comp64.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index f5a6687..a927036 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -1751,3 +1751,8 @@ void bpf_jit_build_epilogue(struct rv_jit_context *ctx) { __build_epilogue(false, ctx); } + +bool bpf_jit_supports_kfunc_call(void) +{ + return true; +} -- 2.7.4