From: Jisheng Zhang <jszhang3@mail.ustc.edu.cn>
To: "Paul Walmsley" <paul.walmsley@sifive.com>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Björn Töpel" <bjorn@kernel.org>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Martin KaFai Lau" <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"KP Singh" <kpsingh@kernel.org>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Michal Marek" <michal.lkml@markovi.net>,
"Nick Desaulniers" <ndesaulniers@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>,
Tong Tiangen <tongtiangen@huawei.com>,
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
Date: Thu, 18 Nov 2021 19:23:21 +0800 [thread overview]
Message-ID: <20211118192321.16837434@xhacker> (raw)
In-Reply-To: <20211118192130.48b8f04c@xhacker>
From: Jisheng Zhang <jszhang@kernel.org>
This is to group riscv related extable related functions signature
into one file.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
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 <linux/module.h>
#include <linux/uaccess.h>
-#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)
{
--
2.33.0
next prev parent reply other threads:[~2021-11-18 11:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-18 11:21 [PATCH v4 0/12] riscv: switch to relative extable and other improvements Jisheng Zhang
2021-11-18 11:22 ` [PATCH 01/12] riscv: remove unused __cmpxchg_user() macro Jisheng Zhang
2021-11-18 11:22 ` [PATCH 02/12] riscv: consolidate __ex_table construction Jisheng Zhang
2021-11-18 11:22 ` [PATCH 03/12] riscv: switch to relative exception tables Jisheng Zhang
2021-11-19 2:09 ` tongtiangen
2021-11-18 11:23 ` Jisheng Zhang [this message]
2021-11-18 11:24 ` [PATCH 05/12] riscv: extable: make fixup_exception() return bool Jisheng Zhang
2021-11-18 11:24 ` [PATCH 06/12] riscv: extable: use `ex` for `exception_table_entry` Jisheng Zhang
2021-11-18 11:25 ` [PATCH 07/12] riscv: lib: uaccess: fold fixups into body Jisheng Zhang
2021-11-18 11:25 ` [PATCH 08/12] riscv: extable: consolidate definitions Jisheng Zhang
2021-11-18 11:26 ` [PATCH 09/12] riscv: extable: add `type` and `data` fields Jisheng Zhang
2021-11-18 11:42 ` Jisheng Zhang
2021-11-18 15:21 ` Mark Rutland
2022-01-06 3:21 ` Palmer Dabbelt
2022-01-06 10:23 ` Mark Rutland
2021-11-19 2:35 ` tongtiangen
2021-11-18 11:26 ` [PATCH 10/12] riscv: add gpr-num.h Jisheng Zhang
2021-11-18 11:26 ` [PATCH 11/12] riscv: extable: add a dedicated uaccess handler Jisheng Zhang
2022-01-20 18:15 ` Mayuresh Chitale
2022-01-21 12:16 ` Jisheng Zhang
2022-01-23 9:12 ` Jisheng Zhang
2022-01-24 17:02 ` Mayuresh Chitale
2021-11-18 11:27 ` [PATCH 12/12] riscv: vmlinux.lds.S|vmlinux-xip.lds.S: remove `.fixup` section Jisheng Zhang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211118192321.16837434@xhacker \
--to=jszhang3@mail.ustc.edu.cn \
--cc=andrii@kernel.org \
--cc=aou@eecs.berkeley.edu \
--cc=ast@kernel.org \
--cc=bjorn@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=john.fastabend@gmail.com \
--cc=kafai@fb.com \
--cc=kpsingh@kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=masahiroy@kernel.org \
--cc=michal.lkml@markovi.net \
--cc=ndesaulniers@google.com \
--cc=netdev@vger.kernel.org \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
--cc=songliubraving@fb.com \
--cc=tongtiangen@huawei.com \
--cc=wangkefeng.wang@huawei.com \
--cc=yhs@fb.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).