From patchwork Thu Nov 18 11:23:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 12626801 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3941AC433EF for ; Thu, 18 Nov 2021 11:35:40 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0390C61AFB for ; Thu, 18 Nov 2021 11:35:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0390C61AFB Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=mail.ustc.edu.cn Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; 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Thu, 18 Nov 2021 11:35:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mail.ustc.edu.cn; s=dkim; h=Received:Date:From:To:Cc:Subject: Message-ID:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=LZbD31jZkGrgx6ViTy/l2Vjvp0vliXuYxb Te8LX4ujw=; b=eBUeMH7vDQCB4UTcZcKRSntM3kEpjHWStnxhoW4CDMxOwbXM7v GdnjFi8y6HoaK9ejGWIKpUkfO3iPNj7S9N0P/0DyPPrRwLqngNL3Lzwgcn7oLIsr bUn7kGYOsFBjx719kaxD2cfS6y+VlXLzGeiZPUl8mY86BGOQJzOF3TGP4= Received: from xhacker (unknown [101.86.18.22]) by newmailweb.ustc.edu.cn (Coremail) with SMTP id LkAmygBnLsxMOpZhi51cAQ--.6032S7; Thu, 18 Nov 2021 19:34:45 +0800 (CST) Date: Thu, 18 Nov 2021 19:23:21 +0800 From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , " =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= " , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Masahiro Yamada , Michal Marek , Nick Desaulniers Cc: Kefeng Wang , Tong Tiangen , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kbuild@vger.kernel.org Subject: [PATCH 04/12] riscv: bpf: move rv_bpf_fixup_exception signature to extable.h Message-ID: <20211118192321.16837434@xhacker> In-Reply-To: <20211118192130.48b8f04c@xhacker> References: <20211118192130.48b8f04c@xhacker> MIME-Version: 1.0 X-CM-TRANSID: LkAmygBnLsxMOpZhi51cAQ--.6032S7 X-Coremail-Antispam: 1UD129KBjvJXoWxuryfXrWUJryxJF4DZr13Jwb_yoW5GrWxpF s8Cas3GrWFgwn3ur13tw10gF45Kr40g34Syry8C3W5t3WIkrWrJr1rta9Iyr98WrW7Wry8 CFySgr1fCw4rZ37anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBCb7Iv0xC_Cr1lb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI 8067AKxVWUAVCq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28C jxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI 8IcVCY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E 87Iv6xkF7I0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64 kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm 72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IY64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1l42 xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWU GwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI4 8JMIIF0xvE2Ix0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4UJVWx Jr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0x vEx4A2jsIEc7CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuYvjxU2bAwDUUUU X-CM-SenderInfo: xmv2xttqjtqzxdloh3xvwfhvlgxou0/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211118_033522_041804_95001D4D X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Jisheng Zhang This is to group riscv related extable related functions signature into one file. Signed-off-by: Jisheng Zhang --- arch/riscv/include/asm/extable.h | 12 ++++++++++++ arch/riscv/mm/extable.c | 6 ------ arch/riscv/net/bpf_jit_comp64.c | 2 -- 3 files changed, 12 insertions(+), 8 deletions(-) diff --git a/arch/riscv/include/asm/extable.h b/arch/riscv/include/asm/extable.h index 84760392fc69..c48c020fcf4d 100644 --- a/arch/riscv/include/asm/extable.h +++ b/arch/riscv/include/asm/extable.h @@ -22,4 +22,16 @@ struct exception_table_entry { #define ARCH_HAS_RELATIVE_EXTABLE int fixup_exception(struct pt_regs *regs); + +#if defined(CONFIG_BPF_JIT) && defined(CONFIG_ARCH_RV64I) +int rv_bpf_fixup_exception(const struct exception_table_entry *ex, struct pt_regs *regs); +#else +static inline int +rv_bpf_fixup_exception(const struct exception_table_entry *ex, + struct pt_regs *regs) +{ + return 0; +} +#endif + #endif diff --git a/arch/riscv/mm/extable.c b/arch/riscv/mm/extable.c index d8d239c2c1bd..cbb0db11b28f 100644 --- a/arch/riscv/mm/extable.c +++ b/arch/riscv/mm/extable.c @@ -11,10 +11,6 @@ #include #include -#if defined(CONFIG_BPF_JIT) && defined(CONFIG_ARCH_RV64I) -int rv_bpf_fixup_exception(const struct exception_table_entry *ex, struct pt_regs *regs); -#endif - int fixup_exception(struct pt_regs *regs) { const struct exception_table_entry *fixup; @@ -23,10 +19,8 @@ int fixup_exception(struct pt_regs *regs) if (!fixup) return 0; -#if defined(CONFIG_BPF_JIT) && defined(CONFIG_ARCH_RV64I) if (regs->epc >= BPF_JIT_REGION_START && regs->epc < BPF_JIT_REGION_END) return rv_bpf_fixup_exception(fixup, regs); -#endif regs->epc = (unsigned long)&fixup->fixup + fixup->fixup; return 1; diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index f2a779c7e225..2ca345c7b0bf 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -459,8 +459,6 @@ static int emit_call(bool fixed, u64 addr, struct rv_jit_context *ctx) #define BPF_FIXUP_OFFSET_MASK GENMASK(26, 0) #define BPF_FIXUP_REG_MASK GENMASK(31, 27) -int rv_bpf_fixup_exception(const struct exception_table_entry *ex, - struct pt_regs *regs); int rv_bpf_fixup_exception(const struct exception_table_entry *ex, struct pt_regs *regs) {