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authorBrian Gerst <brgerst@gmail.com>2025-03-14 18:12:18 +0300
committerIngo Molnar <mingo@kernel.org>2025-03-19 13:19:17 +0300
commit9a93e29f16bbba90a63faad0abbc6dea3b2f0c63 (patch)
tree7690e4e51f40a42420b282c53203f61f1a3ec3ad
parent21832247f2df4f636b0f2ae6939819e8dd2ed35f (diff)
downloadlinux-9a93e29f16bbba90a63faad0abbc6dea3b2f0c63.tar.xz
x86/syscall: Move sys_ni_syscall()
Move sys_ni_syscall() to kernel/process.c, and remove the now empty entry/common.c No functional changes. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Sohil Mehta <sohil.mehta@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20250314151220.862768-6-brgerst@gmail.com
-rw-r--r--arch/x86/entry/Makefile3
-rw-r--r--arch/x86/entry/common.c38
-rw-r--r--arch/x86/kernel/process.c5
3 files changed, 5 insertions, 41 deletions
diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index e870f8aa936c..72cae8e0ce85 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -7,16 +7,13 @@ KASAN_SANITIZE := n
UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
-CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_syscall_32.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_syscall_64.o = $(CC_FLAGS_FTRACE)
-CFLAGS_common.o += -fno-stack-protector
CFLAGS_syscall_32.o += -fno-stack-protector
CFLAGS_syscall_64.o += -fno-stack-protector
obj-y := entry.o entry_$(BITS).o syscall_$(BITS).o
-obj-y += common.o
obj-y += vdso/
obj-y += vsyscall/
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
deleted file mode 100644
index 5bd448c0664f..000000000000
--- a/arch/x86/entry/common.c
+++ /dev/null
@@ -1,38 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * common.c - C code for kernel entry and exit
- * Copyright (c) 2015 Andrew Lutomirski
- *
- * Based on asm and ptrace code by many authors. The code here originated
- * in ptrace.c and signal.c.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/entry-common.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/export.h>
-#include <linux/nospec.h>
-#include <linux/syscalls.h>
-#include <linux/uaccess.h>
-#include <linux/init.h>
-
-#include <asm/apic.h>
-#include <asm/desc.h>
-#include <asm/traps.h>
-#include <asm/vdso.h>
-#include <asm/cpufeature.h>
-#include <asm/fpu/api.h>
-#include <asm/nospec-branch.h>
-#include <asm/io_bitmap.h>
-#include <asm/syscall.h>
-#include <asm/irq_stack.h>
-
-SYSCALL_DEFINE0(ni_syscall)
-{
- return -ENOSYS;
-}
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 0f398a42c1e2..5452237fabd4 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -1063,3 +1063,8 @@ SYSCALL_DEFINE2(arch_prctl, int, option, unsigned long, arg2)
return -EINVAL;
}
+
+SYSCALL_DEFINE0(ni_syscall)
+{
+ return -ENOSYS;
+}