From baee502ce2048aad5ec56acd24c950083a4697e7 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 11 May 2005 11:00:36 +0000
Subject: Get rid of the eir struct mips_fpu_emulator_private member.  It's
 never initialized been initialized anywhere, just saved to and restored from
 signal frames so nonsense anyway.  As neat side effect of being shared
 between all processors it was also abusable as a nice covert channel between
 processes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 03d9a55..d187ab7 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -63,7 +63,6 @@ int fpu_emulator_save_context(struct sigcontext *sc)
 			       &sc->sc_fpregs[i]);
 	}
 	err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
-	err |= __put_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
 
 	return err;
 }
@@ -79,7 +78,6 @@ int fpu_emulator_restore_context(struct sigcontext *sc)
 			       &sc->sc_fpregs[i]);
 	}
 	err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
-	err |= __get_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
 
 	return err;
 }
@@ -100,7 +98,6 @@ int fpu_emulator_save_context32(struct sigcontext32 *sc)
 			       &sc->sc_fpregs[i]);
 	}
 	err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
-	err |= __put_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
 
 	return err;
 }
@@ -116,7 +113,6 @@ int fpu_emulator_restore_context32(struct sigcontext32 *sc)
 			       &sc->sc_fpregs[i]);
 	}
 	err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
-	err |= __get_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
 
 	return err;
 }
diff --git a/include/asm-mips/fpu_emulator.h b/include/asm-mips/fpu_emulator.h
index ea2fae1..42d883b 100644
--- a/include/asm-mips/fpu_emulator.h
+++ b/include/asm-mips/fpu_emulator.h
@@ -24,7 +24,6 @@
 #define _ASM_FPU_EMULATOR_H
 
 struct mips_fpu_emulator_private {
-	unsigned int eir;
 	struct {
 		unsigned int emulated;
 		unsigned int loads;
-- 
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