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>

1 files changed, 0 insertions, 4 deletions

diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 03d9a5560004..d187ab71c2ff 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;
 }