x86/fpu: Remove unused supervisor only offsets

No users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220324134623.465066249@linutronix.de

diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index dc6d5e9..dc33556 100644 (file)
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -83,8 +83,6 @@ static unsigned int xstate_sizes[XFEATURE_MAX] __ro_after_init =
        { [ 0 ... XFEATURE_MAX - 1] = -1};
 static unsigned int xstate_comp_offsets[XFEATURE_MAX] __ro_after_init =
        { [ 0 ... XFEATURE_MAX - 1] = -1};
-static unsigned int xstate_supervisor_only_offsets[XFEATURE_MAX] __ro_after_init =
-       { [ 0 ... XFEATURE_MAX - 1] = -1};
 
 /*
  * Return whether the system supports a given xfeature.
@@ -325,33 +323,6 @@ static void __init setup_xstate_comp_offsets(void)
 }
 
 /*
- * Setup offsets of a supervisor-state-only XSAVES buffer:
- *
- * The offsets stored in xstate_comp_offsets[] only work for one specific
- * value of the Requested Feature BitMap (RFBM).  In cases where a different
- * RFBM value is used, a different set of offsets is required.  This set of
- * offsets is for when RFBM=xfeatures_mask_supervisor().
- */
-static void __init setup_supervisor_only_offsets(void)
-{
-       unsigned int next_offset;
-       int i;
-
-       next_offset = FXSAVE_SIZE + XSAVE_HDR_SIZE;
-
-       for_each_extended_xfeature(i, fpu_kernel_cfg.max_features) {
-               if (!xfeature_is_supervisor(i))
-                       continue;
-
-               if (xfeature_is_aligned(i))
-                       next_offset = ALIGN(next_offset, 64);
-
-               xstate_supervisor_only_offsets[i] = next_offset;
-               next_offset += xstate_sizes[i];
-       }
-}
-
-/*
  * Print out xstate component offsets and sizes
  */
 static void __init print_xstate_offset_size(void)
@@ -951,7 +922,6 @@ void __init fpu__init_system_xstate(unsigned int legacy_size)
 
        setup_init_fpu_buf();
        setup_xstate_comp_offsets();
-       setup_supervisor_only_offsets();
 
        /*
         * Paranoia check whether something in the setup modified the