From: Yong-Xuan Wang Date: Fri, 20 Dec 2024 08:39:23 +0000 (+0800) Subject: riscv: signal: fix signal frame size X-Git-Tag: v6.14-rc5~37^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=aa49bc2ca8524186ceb0811c23a7f00c3dea6987;p=thirdparty%2Fkernel%2Flinux.git riscv: signal: fix signal frame size The signal context of certain RISC-V extensions will be appended after struct __riscv_extra_ext_header, which already includes an empty context header. Therefore, there is no need to preserve a separate hdr for the END of signal context. Fixes: 8ee0b41898fa ("riscv: signal: Add sigcontext save/restore for vector") Signed-off-by: Yong-Xuan Wang Reviewed-by: Zong Li Reviewed-by: Andy Chiu Reviewed-by: Alexandre Ghiti Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20241220083926.19453-2-yongxuan.wang@sifive.com Signed-off-by: Palmer Dabbelt --- diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c index 94e905eea1dee..08378fea3a111 100644 --- a/arch/riscv/kernel/signal.c +++ b/arch/riscv/kernel/signal.c @@ -215,12 +215,6 @@ static size_t get_rt_frame_size(bool cal_all) if (cal_all || riscv_v_vstate_query(task_pt_regs(current))) total_context_size += riscv_v_sc_size; } - /* - * Preserved a __riscv_ctx_hdr for END signal context header if an - * extension uses __riscv_extra_ext_header - */ - if (total_context_size) - total_context_size += sizeof(struct __riscv_ctx_hdr); frame_size += total_context_size;