linux-kernel - [PATCH 11/20] x86: entry: add do_SYSENTER

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Message-Id: <20230516193549.544673-12-arnd@kernel.org>
Date:   Tue, 16 May 2023 21:35:40 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     x86@...nel.org
Cc:     Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Juergen Gross <jgross@...e.com>,
        "Srivatsa S. Bhat (VMware)" <srivatsa@...il.mit.edu>,
        Alexey Makhalov <amakhalov@...are.com>,
        VMware PV-Drivers Reviewers <pv-drivers@...are.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-pci@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        xen-devel@...ts.xenproject.org, linux-pm@...r.kernel.org,
        linux-mm@...ck.org
Subject: [PATCH 11/20] x86: entry: add  do_SYSENTER_32() prototype

From: Arnd Bergmann <arnd@...db.de>

The 32-bit system call entry points can be called on both 32-bit
and 64-bit kernels, but on the former the declarations are hidden:

arch/x86/entry/common.c:238:24: error: no previous prototype for 'do_SYSENTER_32' [-Werror=missing-prototypes]

Move them all out of the #ifdef block to avoid the warnings.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/x86/include/asm/syscall.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index 5b85987a5e97..4fb36fba4b5a 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -127,9 +127,11 @@ static inline int syscall_get_arch(struct task_struct *task)
 }
 
 void do_syscall_64(struct pt_regs *regs, int nr);
-void do_int80_syscall_32(struct pt_regs *regs);
-long do_fast_syscall_32(struct pt_regs *regs);
 
 #endif	/* CONFIG_X86_32 */
 
+void do_int80_syscall_32(struct pt_regs *regs);
+long do_fast_syscall_32(struct pt_regs *regs);
+long do_SYSENTER_32(struct pt_regs *regs);
+
 #endif	/* _ASM_X86_SYSCALL_H */
-- 
2.39.2