[Xen-devel] [PATCH v5 0/6] Use C inlines for uaccess

[Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>]

Changelog:
v5:
        - Fixed build issue reported by kbuild
        - Removed a comment fix from the first patch
        - Added reviewed-by's from Julien Grall
        - Now, these patches apply against mainline
v4:
        - Split the first patch into two as Julien Grall 
        - Also as Mark Rutland suggested removed alternatives
          from __asm_flush_cache_user_range.
v3:
        - Added Acked-by from Stefano Stabellini
        - Addressed comments from Mark Rutland
v2:
        - Addressed Russell King's concern by not adding
          uaccess_* to ARM.
        - Removed the accidental change to xtensa

Convert the remaining uaccess_* calls from ASM macros to C inlines.

These patches apply against maineline. I boot tested ARM64, and
compile tested ARM change

Previous discussions:
v4: 
https://lore.kernel.org/lkml/20191204232058.2500117-1-pasha.tatashin@xxxxxxxxxx
v3: 
https://lore.kernel.org/lkml/20191127184453.229321-1-pasha.tatashin@xxxxxxxxxx
v2: 
https://lore.kernel.org/lkml/20191122022406.590141-1-pasha.tatashin@xxxxxxxxxx
v1: 
https://lore.kernel.org/lkml/20191121184805.414758-1-pasha.tatashin@xxxxxxxxxx

Pavel Tatashin (6):
  arm/arm64/xen: hypercall.h add includes guards
  arm/arm64/xen: use C inlines for privcmd_call
  arm64: remove uaccess_ttbr0 asm macros from cache functions
  arm64: remove __asm_flush_icache_range
  arm64: move ARM64_HAS_CACHE_DIC/_IDC from asm to C
  arm64: remove the rest of asm-uaccess.h

 arch/arm/include/asm/xen/hypercall.h   | 10 ++++
 arch/arm/xen/enlighten.c               |  2 +-
 arch/arm/xen/hypercall.S               |  4 +-
 arch/arm64/include/asm/asm-uaccess.h   | 61 -----------------------
 arch/arm64/include/asm/cacheflush.h    | 55 +++++++++++++++++++--
 arch/arm64/include/asm/xen/hypercall.h | 28 +++++++++++
 arch/arm64/kernel/entry.S              | 27 +++++++++-
 arch/arm64/lib/clear_user.S            |  2 +-
 arch/arm64/lib/copy_from_user.S        |  2 +-
 arch/arm64/lib/copy_in_user.S          |  2 +-
 arch/arm64/lib/copy_to_user.S          |  2 +-
 arch/arm64/mm/cache.S                  | 68 +++++---------------------
 arch/arm64/mm/flush.c                  |  3 +-
 arch/arm64/xen/hypercall.S             | 19 +------
 include/xen/arm/hypercall.h            | 12 ++---
 15 files changed, 146 insertions(+), 151 deletions(-)
 delete mode 100644 arch/arm64/include/asm/asm-uaccess.h

-- 
2.17.1


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