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x86/fpu/xstate: Consolidate size calculations
authorThomas Gleixner <[email protected]>
Mon, 28 Mar 2022 18:43:21 +0000 (20:43 +0200)
committerBorislav Petkov <[email protected]>
Wed, 30 Mar 2022 10:04:09 +0000 (12:04 +0200)
commitd6d6d50f1e801a790a242c80eeda261e36c43b7b
tree537bfef6dd75df1a31abd08c4b96aaa7acf94fdctree | snapshot
parent781c64bfcb735960717d1cb45428047ff6a5030ccommit | diff
x86/fpu/xstate: Consolidate size calculations

Use the offset calculation to do the size calculation which avoids yet
another series of CPUID instructions for each invocation.

  [ Fix the FP/SSE only case which missed to take the xstate
    header into account, as
Reported-by: kernel test robot <[email protected]> ]
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Link: https://lore.kernel.org/r/87o81pgbp2.ffs@tglx
arch/x86/kernel/fpu/xstate.c diff | blob | blame | history
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