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- Get rid of a bunch of function pointers used in MCA land in favor

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of normal functions. This is in preparation of making the MCA code
 noinstr-aware
 
 - When the kernel copies data from user addresses and it encounters a
 machine check, a SIGBUS is sent to that process. Change this action to
 either an -EFAULT which is returned to the user or a short write, making
 the recovery action a lot more user-friendly
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Merge tag 'ras_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RAS updates from Borislav Petkov:

 - Get rid of a bunch of function pointers used in MCA land in favor of
   normal functions. This is in preparation of making the MCA code
   noinstr-aware

 - When the kernel copies data from user addresses and it encounters a
   machine check, a SIGBUS is sent to that process. Change this action
   to either an -EFAULT which is returned to the user or a short write,
   making the recovery action a lot more user-friendly

* tag 'ras_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Sort mca_config members to get rid of unnecessary padding
  x86/mce: Get rid of the ->quirk_no_way_out() indirect call
  x86/mce: Get rid of msr_ops
  x86/mce: Get rid of machine_check_vector
  x86/mce: Get rid of the mce_severity function pointer
  x86/mce: Drop copyin special case for #MC
  x86/mce: Change to not send SIGBUS error during copy from user
This commit is contained in:
Linus Torvalds 2021-11-01 15:12:04 -07:00
commit 158405e888
8 changed files with 161 additions and 208 deletions
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