linux-kernel - [PATCH 06/12] riscv: extable: use `ex` for `exception_table

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Message-ID: <20211118192442.3ef1c1cc@xhacker>
Date:   Thu, 18 Nov 2021 19:24:42 +0800
From:   Jisheng Zhang <jszhang3@...l.ustc.edu.cn>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        "Björn Töpel" <bjorn@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        Tong Tiangen <tongtiangen@...wei.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kbuild@...r.kernel.org
Subject: [PATCH 06/12] riscv: extable: use `ex` for `exception_table_entry`

From: Jisheng Zhang <jszhang@...nel.org>

The var name "fixup" is a bit confusing, since this is a
exception_table_entry. Use "ex" instead  to refer to an entire entry.
In subsequent patches we'll use `fixup` to refer to the fixup
field specifically.

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
---
 arch/riscv/mm/extable.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/mm/extable.c b/arch/riscv/mm/extable.c
index d41bf38e37e9..3c561f1d0115 100644
--- a/arch/riscv/mm/extable.c
+++ b/arch/riscv/mm/extable.c
@@ -13,15 +13,15 @@
 
 bool fixup_exception(struct pt_regs *regs)
 {
-	const struct exception_table_entry *fixup;
+	const struct exception_table_entry *ex;
 
-	fixup = search_exception_tables(regs->epc);
-	if (!fixup)
+	ex = search_exception_tables(regs->epc);
+	if (!ex)
 		return false;
 
 	if (regs->epc >= BPF_JIT_REGION_START && regs->epc < BPF_JIT_REGION_END)
-		return rv_bpf_fixup_exception(fixup, regs);
+		return rv_bpf_fixup_exception(ex, regs);
 
-	regs->epc = (unsigned long)&fixup->fixup + fixup->fixup;
+	regs->epc = (unsigned long)&ex->fixup + ex->fixup;
 	return true;
 }
-- 
2.33.0