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| author | Thomas Gleixner <tglx@linutronix.de> | 2022-03-24 14:47:09 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-03-30 10:44:51 +0200 |
| commit | d47f71f6de7970d504748d1a60a11c51af5bce47 (patch) | |
| tree | 39bd98851e2645a79a0a6029a1a06a943cb8a1d0 | |
| parent | x86/fpu: Remove redundant XCOMP_BV initialization (diff) | |
| download | linux-d47f71f6de7970d504748d1a60a11c51af5bce47.tar.xz linux-d47f71f6de7970d504748d1a60a11c51af5bce47.zip | |
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
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index dc6d5e98d296..dc33556779f7 100644 --- 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 |