From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1BAD43F4D7; Tue, 7 Jul 2026 19:07:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783451226; cv=none; b=phmktehB7us//R4kAlHa3qd0WHMIGTQdeLGFI3BuQaz4IdDtbhwbRsF7xBNFYjjJBn2SMxR5dfkGueoADZu4Z2jEetmLMjHq/CCNQ9MMI9w/n/UapJTNWBwyFs17poIi/MpNGqz1DDACDBi8oFHx+QL5AJ+AC6LFEZ5WdNuNIEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783451226; c=relaxed/simple; bh=/3nHDhz12x4f14CZgcOAbR0f2UE9sEAXtCHIKlhj+K8=; h=Date:Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=AekHhbRnw/Nt3bykayNnLBc97WZe/ZRG5X70IjDBaU2Di2AppcJm5ShsZDLBgCxTdYitVVLV41JRdrOmGfzsPZtSP6NgA1NLC7FKTpGqZZWIEoz3r43hAzz0qMnVzybHV9a5w4MGcubbrg16mRCyRsihbhVG16fTYvq8n2SHNBA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mLelz5RM; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mLelz5RM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0645A1F000E9; Tue, 7 Jul 2026 19:06:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783451219; bh=TiJrYE33DXumkQwt2/+W2OjkQTFHtAcxd2PwMoVTvyY=; h=Date:From:To:Cc:Subject:References; b=mLelz5RMvm7eytF+jRJ4D5fjNpUVxBoHH7hg2nYnZT/UFPrsYUFlgsa1ekVxmkuNT gqUlNLdwWLgnYzjvuNk4q4mfdBDP4L9l+PTvTfQrCbLe3tZ/yCqRzAo7NlwS8PHVVI 49mJ8Q2tJOFblQl3o/L9kClWZZm2mywKm7GJNLZxIBpy3Ihnr2srvP1DZLhHyNUo1f Hc4RmwqJyFgE/dUEvlOSzi5K2ghRbH1MWuPc5m+aohcMKTewB0AZ3WteDH3gsBS7Ig eb6bs+QZFAyC8WgWIMWvxdkpIA0RxkwSS687u/2TmUsTZblqnvzwjAyicI3Zcq5CI+ B67Z6TZ23hK0Q== Date: Tue, 07 Jul 2026 21:06:57 +0200 Message-ID: <20260707190254.438361565@kernel.org> User-Agent: quilt/0.69 From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Michael Ellerman , Shrikanth Hegde , linuxppc-dev@lists.ozlabs.org, Kees Cook , Huacai Chen , loongarch@lists.linux.dev, Paul Walmsley , Palmer Dabbelt , linux-riscv@lists.infradead.org, Sven Schnelle , linux-s390@vger.kernel.org, x86@kernel.org, Mark Rutland , Jinjie Ruan , Andy Lutomirski , Oleg Nesterov , Richard Henderson , Russell King , Catalin Marinas , Guo Ren , Geert Uytterhoeven , Thomas Bogendoerfer , Helge Deller , Yoshinori Sato , Richard Weinberger , Chris Zankel , linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org, linux-csky@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Arnd Bergmann , Vineet Gupta , Will Deacon , Brian Cain , Michal Simek , Dinh Nguyen , "David S. Miller" , Andreas Larsson , linux-snps-arc@lists.infradead.org, linux-hexagon@vger.kernel.org, linux-openrisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, =?UTF-8?q?Michal=20Such=C3=A1nek?= , Jonathan Corbet , linux-doc@vger.kernel.org Subject: [patch 15/18] x86/entry: Make syscall functions static References: <20260707181957.433213175@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 They are only used in the respective source files. No point in exposing them. Signed-off-by: Thomas Gleixner --- arch/x86/entry/syscall_32.c | 2 +- arch/x86/entry/syscall_64.c | 10 ++++++---- arch/x86/include/asm/syscall.h | 8 -------- 3 files changed, 7 insertions(+), 13 deletions(-) --- a/arch/x86/entry/syscall_32.c +++ b/arch/x86/entry/syscall_32.c @@ -41,7 +41,7 @@ const sys_call_ptr_t sys_call_table[] = #endif #define __SYSCALL(nr, sym) case nr: return __ia32_##sym(regs); -long ia32_sys_call(const struct pt_regs *regs, unsigned int nr) +static noinline long ia32_sys_call(const struct pt_regs *regs, unsigned int nr) { switch (nr) { #include --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -32,7 +32,7 @@ const sys_call_ptr_t sys_call_table[] = #undef __SYSCALL #define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs); -long x64_sys_call(const struct pt_regs *regs, unsigned int nr) +static noinline long x64_sys_call(const struct pt_regs *regs, unsigned int nr) { switch (nr) { #include @@ -40,15 +40,17 @@ long x64_sys_call(const struct pt_regs * } } -#ifdef CONFIG_X86_X32_ABI -long x32_sys_call(const struct pt_regs *regs, unsigned int nr) +static noinline long x32_sys_call(const struct pt_regs *regs, unsigned int nr) { +#ifdef CONFIG_X86_X32_ABI switch (nr) { #include default: return __x64_sys_ni_syscall(regs); } -} +#else + return -ENOSYS; #endif +} static __always_inline bool do_syscall_x64(struct pt_regs *regs, int nr) { --- a/arch/x86/include/asm/syscall.h +++ b/arch/x86/include/asm/syscall.h @@ -21,14 +21,6 @@ typedef long (*sys_call_ptr_t)(const str extern const sys_call_ptr_t sys_call_table[]; /* - * These may not exist, but still put the prototypes in so we - * can use IS_ENABLED(). - */ -extern long ia32_sys_call(const struct pt_regs *, unsigned int nr); -extern long x32_sys_call(const struct pt_regs *, unsigned int nr); -extern long x64_sys_call(const struct pt_regs *, unsigned int nr); - -/* * Only the low 32 bits of orig_ax are meaningful, so we return int. * This importantly ignores the high bits on 64-bit, so comparisons * sign-extend the low 32 bits.