From: Paul Walmsley <paul.walmsley@sifive.com>
To: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/8] riscv: add prototypes for assembly language functions from entry.S
Date: Thu, 17 Oct 2019 17:49:22 -0700 [thread overview]
Message-ID: <20191018004929.3445-2-paul.walmsley@sifive.com> (raw)
In-Reply-To: <20191018004929.3445-1-paul.walmsley@sifive.com>
Add prototypes for assembly language functions defined in entry.S,
and include these prototypes into C source files that call those
functions.
This patch resolves the following warnings from sparse:
arch/riscv/kernel/signal.c:32:53: warning: incorrect type in initializer (different address spaces)
arch/riscv/kernel/signal.c:45:23: warning: incorrect type in initializer (different address spaces)
arch/riscv/kernel/signal.c:59:53: warning: incorrect type in initializer (different address spaces)
arch/riscv/kernel/signal.c:69:23: warning: incorrect type in initializer (different address spaces)
arch/riscv/kernel/signal.c:89:48: warning: incorrect type in argument 2 (different address spaces)
arch/riscv/kernel/signal.c:142:45: warning: incorrect type in argument 2 (different address spaces)
arch/riscv/kernel/signal.c:295:17: warning: symbol 'do_notify_resume' was not declared. Should it be static?
arch/riscv/kernel/traps.c:91:1: warning: symbol 'do_trap_unknown' was not declared. Should it be static?
arch/riscv/kernel/traps.c:93:1: warning: symbol 'do_trap_insn_misaligned' was not declared. Should it be static?
arch/riscv/kernel/traps.c:95:1: warning: symbol 'do_trap_insn_fault' was not declared. Should it be static?
arch/riscv/kernel/traps.c:97:1: warning: symbol 'do_trap_insn_illegal' was not declared. Should it be static?
arch/riscv/kernel/traps.c:99:1: warning: symbol 'do_trap_load_misaligned' was not declared. Should it be static?
arch/riscv/kernel/traps.c:101:1: warning: symbol 'do_trap_load_fault' was not declared. Should it be static?
arch/riscv/kernel/traps.c:103:1: warning: symbol 'do_trap_store_misaligned' was not declared. Should it be static?
arch/riscv/kernel/traps.c:105:1: warning: symbol 'do_trap_store_fault' was not declared. Should it be static?
arch/riscv/kernel/traps.c:107:1: warning: symbol 'do_trap_ecall_u' was not declared. Should it be static?
arch/riscv/kernel/traps.c:109:1: warning: symbol 'do_trap_ecall_s' was not declared. Should it be static?
arch/riscv/kernel/traps.c:111:1: warning: symbol 'do_trap_ecall_m' was not declared. Should it be static?
arch/riscv/kernel/traps.c:125:17: warning: symbol 'do_trap_break' was not declared. Should it be static?
arch/riscv/kernel/traps.c:163:13: warning: symbol 'trap_init' was not declared. Should it be static?
This change should have no functional impact.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
---
arch/riscv/kernel/entry.h | 29 +++++++++++++++++++++++++++++
arch/riscv/kernel/signal.c | 2 ++
arch/riscv/kernel/traps.c | 2 ++
3 files changed, 33 insertions(+)
create mode 100644 arch/riscv/kernel/entry.h
diff --git a/arch/riscv/kernel/entry.h b/arch/riscv/kernel/entry.h
new file mode 100644
index 000000000000..73bfcda993d0
--- /dev/null
+++ b/arch/riscv/kernel/entry.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 SiFive, Inc.
+ */
+#ifndef __ASM_ENTRY_H
+#define __ASM_ENTRY_H
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+asmlinkage void do_trap_unknown(struct pt_regs *regs);
+asmlinkage void do_trap_insn_misaligned(struct pt_regs *regs);
+asmlinkage void do_trap_insn_fault(struct pt_regs *regs);
+asmlinkage void do_trap_insn_illegal(struct pt_regs *regs);
+asmlinkage void do_trap_load_misaligned(struct pt_regs *regs);
+asmlinkage void do_trap_load_fault(struct pt_regs *regs);
+asmlinkage void do_trap_store_misaligned(struct pt_regs *regs);
+asmlinkage void do_trap_store_fault(struct pt_regs *regs);
+asmlinkage void do_trap_ecall_u(struct pt_regs *regs);
+asmlinkage void do_trap_ecall_s(struct pt_regs *regs);
+asmlinkage void do_trap_ecall_m(struct pt_regs *regs);
+asmlinkage void do_trap_break(struct pt_regs *regs);
+
+asmlinkage void do_notify_resume(struct pt_regs *regs,
+ unsigned long thread_info_flags);
+
+void __init trap_init(void);
+
+#endif /* __ASM__H */
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c
index b14d7647d800..85c700ad47e9 100644
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -17,6 +17,8 @@
#include <asm/switch_to.h>
#include <asm/csr.h>
+#include "entry.h"
+
#define DEBUG_SIG 0
struct rt_sigframe {
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 1ac75f7d0bff..eff679c3b618 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -19,6 +19,8 @@
#include <asm/ptrace.h>
#include <asm/csr.h>
+#include "entry.h"
+
int show_unhandled_signals = 1;
extern asmlinkage void handle_exception(void);
--
2.23.0
next prev parent reply other threads:[~2019-10-18 0:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 0:49 [PATCH 0/8] riscv: resolve most warnings from sparse Paul Walmsley
2019-10-18 0:49 ` Paul Walmsley [this message]
2019-10-18 0:49 ` [PATCH 2/8] riscv: add prototypes for assembly language functions from head.S Paul Walmsley
2019-10-18 1:15 ` Paul Walmsley
2019-10-18 0:49 ` [PATCH 3/8] riscv: init: merge split string literals in preprocessor directive Paul Walmsley
2019-10-18 4:02 ` Luc Van Oostenryck
2019-10-18 4:38 ` Paul Walmsley
2019-10-18 5:28 ` Luc Van Oostenryck
2019-10-18 5:47 ` Luc Van Oostenryck
2019-10-18 6:08 ` Paul Walmsley
2019-10-18 0:49 ` [PATCH 4/8] riscv: ensure RISC-V C model definitions are passed to static analyzers Paul Walmsley
2019-10-18 4:06 ` Luc Van Oostenryck
2019-10-18 4:39 ` Paul Walmsley
2019-10-18 5:25 ` Luc Van Oostenryck
2019-10-22 15:09 ` Palmer Dabbelt
2019-10-28 22:11 ` Luc Van Oostenryck
2019-10-18 0:49 ` [PATCH 5/8] riscv: add missing prototypes Paul Walmsley
2019-10-18 4:15 ` Luc Van Oostenryck
2019-10-18 6:06 ` Paul Walmsley
2019-10-18 0:49 ` [PATCH 6/8] riscv: mark some code and data as file-static Paul Walmsley
2019-10-18 0:49 ` [PATCH 7/8] riscv: add missing header file includes Paul Walmsley
2019-10-18 0:49 ` [PATCH 8/8] riscv: fp: add missing __user pointer annotations Paul Walmsley
2019-10-18 3:12 ` [PATCH 0/8] riscv: resolve most warnings from sparse Anup Patel
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