Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Brian Gerst <brgerst@gmail.com>
To:     linux-kernel@vger.kernel.org, x86@kernel.org
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Andy Lutomirski <luto@kernel.org>,
        Brian Gerst <brgerst@gmail.com>
Subject: [PATCH 4/5] x86-64: Use syscall wrappers for x32_rt_sigreturn
Date:   Fri, 21 Feb 2020 00:09:33 -0500
Message-Id: <20200221050934.719152-5-brgerst@gmail.com>
In-Reply-To: <20200221050934.719152-1-brgerst@gmail.com>
References: <20200221050934.719152-1-brgerst@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Signed-off-by: Brian Gerst <brgerst@gmail.com>
---
 arch/x86/entry/syscalls/syscall_64.tbl | 2 +-
 arch/x86/include/asm/sighandling.h     | 5 -----
 arch/x86/kernel/signal.c               | 2 +-
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 44d510bc9b78..0b5a25bc9998 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -367,7 +367,7 @@
 # is defined.
 #
 512	x32	rt_sigaction		__x32_compat_sys_rt_sigaction
-513	x32	rt_sigreturn		sys32_x32_rt_sigreturn
+513	x32	rt_sigreturn		__x32_compat_sys_x32_rt_sigreturn
 514	x32	ioctl			__x32_compat_sys_ioctl
 515	x32	readv			__x32_compat_sys_readv
 516	x32	writev			__x32_compat_sys_writev
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index 2fcbd6f33ef7..bd26834724e5 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -17,9 +17,4 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 		     struct pt_regs *regs, unsigned long mask);
 
-
-#ifdef CONFIG_X86_X32_ABI
-asmlinkage long sys32_x32_rt_sigreturn(void);
-#endif
-
 #endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 8a29573851a3..860904990b26 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -859,7 +859,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 }
 
 #ifdef CONFIG_X86_X32_ABI
-asmlinkage long sys32_x32_rt_sigreturn(void)
+COMPAT_SYSCALL_DEFINE0(x32_rt_sigreturn)
 {
 	struct pt_regs *regs = current_pt_regs();
 	struct rt_sigframe_x32 __user *frame;
-- 
2.24.1