linux-kernel - [PATCH 2/2] x86/x32: Convert x32_rt

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Date:   Tue, 16 Jun 2020 10:23:15 -0400
From:   Brian Gerst <brgerst@...il.com>
To:     linux-kernel@...r.kernel.org, x86@...nel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Christoph Hellwig <hch@....de>, Arnd Bergmann <arnd@...db.de>,
        Brian Gerst <brgerst@...il.com>
Subject: [PATCH 2/2] x86/x32: Convert x32_rt_sigreturn to native syscall

x32_rt_sigreturn doesn't need to be a compat syscall because there aren't two
versions.

Signed-off-by: Brian Gerst <brgerst@...il.com>
---
 arch/x86/entry/syscalls/syscall_64.tbl            | 2 +-
 arch/x86/kernel/signal.c                          | 2 +-
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 78847b32e137..5fb63ac69971 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -368,7 +368,7 @@
 # is defined.
 #
 512	x32	rt_sigaction		compat_sys_rt_sigaction
-513	x32	rt_sigreturn		compat_sys_x32_rt_sigreturn
+513	x32	rt_sigreturn		sys_x32_rt_sigreturn
 514	x32	ioctl			compat_sys_ioctl
 515	x32	readv			compat_sys_readv
 516	x32	writev			compat_sys_writev
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 399f97abee02..8a3d1cd4ea70 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -856,7 +856,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 }
 
 #ifdef CONFIG_X86_X32_ABI
-COMPAT_SYSCALL_DEFINE0(x32_rt_sigreturn)
+SYSCALL_DEFINE0(x32_rt_sigreturn)
 {
 	struct pt_regs *regs = current_pt_regs();
 	struct rt_sigframe_x32 __user *frame;
diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index 37b844f839bc..36a3c8a913da 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -367,7 +367,7 @@
 # is defined.
 #
 512	x32	rt_sigaction		compat_sys_rt_sigaction
-513	x32	rt_sigreturn		compat_sys_x32_rt_sigreturn
+513	x32	rt_sigreturn		sys_x32_rt_sigreturn
 514	x32	ioctl			compat_sys_ioctl
 515	x32	readv			compat_sys_readv
 516	x32	writev			compat_sys_writev
-- 
2.26.2