From 7e2552dc4a71f92c9b2241ecb4ba8f7e87a247d4 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@debian.org>
Date: Tue, 30 Sep 2003 08:03:36 -0700
Subject: [PATCH] [PATCH] Remove ELF_CORE_SYNC

ELF_CORE_SYNC and dump_smp_unlazy_fpu seem to have been introduced
by Ingo around 2.5.43, but as far as I can tell, never used.
---
 arch/i386/kernel/i387.c     | 10 ----------
 arch/ppc64/kernel/process.c | 17 -----------------
 arch/x86_64/kernel/i387.c   |  9 ---------
 include/asm-i386/elf.h      |  5 -----
 include/asm-ppc64/elf.h     |  5 -----
 include/asm-x86_64/elf.h    |  5 -----
 6 files changed, 51 deletions(-)

diff --git a/arch/i386/kernel/i387.c b/arch/i386/kernel/i387.c
index a7db0c08b2ea0..ab87b6804a4eb 100644
--- a/arch/i386/kernel/i387.c
+++ b/arch/i386/kernel/i387.c
@@ -549,13 +549,3 @@ int dump_task_extended_fpu(struct task_struct *tsk, struct user_fxsr_struct *fpu
 	}
 	return fpvalid;
 }
-
-
-#ifdef CONFIG_SMP
-void dump_smp_unlazy_fpu(void)
-{
-	unlazy_fpu(current);
-	return;
-}
-#endif
-
diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c
index 94c06a7ca9da3..4477ea92dceb8 100644
--- a/arch/ppc64/kernel/process.c
+++ b/arch/ppc64/kernel/process.c
@@ -70,23 +70,6 @@ enable_kernel_fp(void)
 #endif /* CONFIG_SMP */
 }
 
-#ifdef CONFIG_SMP
-static void smp_unlazy_onefpu(void *arg)
-{
-	struct pt_regs *regs = current->thread.regs;
-
-	if (!regs)
-		return;
-	if (regs->msr & MSR_FP)
-		giveup_fpu(current);
-}
-
-void dump_smp_unlazy_fpu(void)
-{
-	smp_call_function(smp_unlazy_onefpu, NULL, 1, 1);
-}
-#endif
-
 int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
 {
 	struct pt_regs *regs = tsk->thread.regs;
diff --git a/arch/x86_64/kernel/i387.c b/arch/x86_64/kernel/i387.c
index 9d71651833d4d..dbe02ec1e3d3b 100644
--- a/arch/x86_64/kernel/i387.c
+++ b/arch/x86_64/kernel/i387.c
@@ -138,12 +138,3 @@ int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
 }
 	return fpvalid;
 }
-
-#ifdef CONFIG_SMP
-void dump_smp_unlazy_fpu(void)
-{
-	unlazy_fpu(current);
-	return;
-}
-#endif
-
diff --git a/include/asm-i386/elf.h b/include/asm-i386/elf.h
index 2a2ffd63cf9f2..2c2a91148d307 100644
--- a/include/asm-i386/elf.h
+++ b/include/asm-i386/elf.h
@@ -127,11 +127,6 @@ extern int dump_task_extended_fpu (struct task_struct *, struct user_fxsr_struct
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 #define ELF_CORE_COPY_XFPREGS(tsk, elf_xfpregs) dump_task_extended_fpu(tsk, elf_xfpregs)
 
-#ifdef CONFIG_SMP
-extern void dump_smp_unlazy_fpu(void);
-#define ELF_CORE_SYNC dump_smp_unlazy_fpu
-#endif
-
 #define VSYSCALL_BASE	(__fix_to_virt(FIX_VSYSCALL))
 #define VSYSCALL_EHDR	((const struct elfhdr *) VSYSCALL_BASE)
 #define VSYSCALL_ENTRY	((unsigned long) &__kernel_vsyscall)
diff --git a/include/asm-ppc64/elf.h b/include/asm-ppc64/elf.h
index 61f5aa4aee964..1272c89498881 100644
--- a/include/asm-ppc64/elf.h
+++ b/include/asm-ppc64/elf.h
@@ -128,11 +128,6 @@ static inline int dump_task_regs(struct task_struct *tsk,
 extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); 
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
-#ifdef CONFIG_SMP
-extern void dump_smp_unlazy_fpu(void);
-#define ELF_CORE_SYNC dump_smp_unlazy_fpu
-#endif
-
 #endif
 
 /* This yields a mask that user programs can use to figure out what
diff --git a/include/asm-x86_64/elf.h b/include/asm-x86_64/elf.h
index b28fd82180ef6..e72f10fef3fe9 100644
--- a/include/asm-x86_64/elf.h
+++ b/include/asm-x86_64/elf.h
@@ -150,11 +150,6 @@ extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
-#ifdef CONFIG_SMP
-extern void dump_smp_unlazy_fpu(void);
-#define ELF_CORE_SYNC dump_smp_unlazy_fpu
-#endif
-
 #endif
 
 #endif
-- 
2.53.0