[PATCH v4 06/10] x86-64: Remove vsyscall number 3 (venosys)

[Andy Lutomirski]

It just segfaults since April 2008 (a4928cff), so I'm pretty sure
that nothing uses it.  And having an empty section makes the linker
script a bit fragile.

Signed-off-by: Andy Lutomirski <luto@xxxxxxx>
---
 arch/x86/kernel/vmlinux.lds.S |    4 ----
 arch/x86/kernel/vsyscall_64.c |    3 ---
 2 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 3d89a00..dc8ac70 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -182,10 +182,6 @@ SECTIONS
 		*(.vsyscall_2)
 	}
 
-	.vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) {
-		*(.vsyscall_3)
-	}
-
 	. = ALIGN(__vsyscall_0 + PAGE_SIZE, PAGE_SIZE);
 
 #undef VSYSCALL_ADDR
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 9b2f3f5..c7fe325 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -209,9 +209,6 @@ vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
 	return 0;
 }
 
-static long __vsyscall(3) venosys_1(void)
-{
-	return -ENOSYS;
 }
 
 /* Assume __initcall executes before all user space. Hopefully kmod
-- 
1.7.5.1

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