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authorRalf Baechle <ralf@linux-mips.org>2005-05-11 11:00:36 +0000
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 19:31:14 +0100
commitbaee502ce2048aad5ec56acd24c950083a4697e7 (patch)
tree3617f48e1f66bda071caabfc8bf8b861e59e1c21
parent1d74f6bc85cbdc4601e5aea1e67ccbd259f0c7f4 (diff)
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>
-rw-r--r--arch/mips/math-emu/kernel_linkage.c4
-rw-r--r--include/asm-mips/fpu_emulator.h1
2 files changed, 0 insertions, 5 deletions
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 03d9a556000..d187ab71c2f 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 ea2fae10865..42d883ba1a3 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;