linux-kernel - [PATCH v5 0/6] Use C inlines for uaccess

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Date:   Thu,  2 Jan 2020 16:13:51 -0500
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     pasha.tatashin@...een.com, jmorris@...ei.org, sashal@...nel.org,
        linux-kernel@...r.kernel.org, catalin.marinas@....com,
        will@...nel.org, steve.capper@....com,
        linux-arm-kernel@...ts.infradead.org, maz@...nel.org,
        james.morse@....com, vladimir.murzin@....com, mark.rutland@....com,
        tglx@...utronix.de, gregkh@...uxfoundation.org,
        allison@...utok.net, info@...ux.net, alexios.zavras@...el.com,
        sstabellini@...nel.org, boris.ostrovsky@...cle.com,
        jgross@...e.com, stefan@...er.ch, yamada.masahiro@...ionext.com,
        xen-devel@...ts.xenproject.org, linux@...linux.org.uk,
        andrew.cooper3@...rix.com, julien@....org
Subject: [PATCH v5 0/6] Use C inlines for uaccess

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@soleen.com
v3: https://lore.kernel.org/lkml/20191127184453.229321-1-pasha.tatashin@soleen.com
v2: https://lore.kernel.org/lkml/20191122022406.590141-1-pasha.tatashin@soleen.com
v1: https://lore.kernel.org/lkml/20191121184805.414758-1-pasha.tatashin@soleen.com

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