linux-kernel - [PATCH v2 0/2] sparc32: srmmu: improve type safety of __nocache

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Message-Id: <20200627081653.25311-1-rppt@kernel.org>
Date:   Sat, 27 Jun 2020 11:16:51 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     sparclinux@...r.kernel.org
Cc:     David Miller <davem@...emloft.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>, linux-kernel@...r.kernel.org,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: [PATCH v2 0/2] sparc32: srmmu: improve type safety of __nocache_fix()

From: Mike Rapoport <rppt@...ux.ibm.com>

Hi,

As discussed at [1] the __nocache_fix() macro in sparc's SRMMU can be made
type safe and so the compiler will yell anout misuse of pXd pointers for
which the __nocache_fix() is primarily used.

The first patch is an fix of such misuse that I've discovered after adding
type cast to __nocache_fix(), but to avoid breaking bisection I've made it
the first commit.

v2: rebased on v5.8-rc2+

--
Sincerely yours,
Mike.

[1] https://lkml.kernel.org/r/CAHk-=wisORTa7QVPnFqNw9pFs62UiwgsD4C4d=MtYy1o4JPyGQ@mail.gmail.com

Mike Rapoport (2):
  sparc32: use PUD rather than PGD to get PMD in srmmu_inherit_prom_mappings()
  sparc32: srmmu: improve type safety of __nocache_fix()

 arch/sparc/include/asm/pgtsrmmu.h |  2 +-
 arch/sparc/mm/srmmu.c             | 18 +++++++++---------
 2 files changed, 10 insertions(+), 10 deletions(-)

base-commit: 1590a2e1c681b0991bd42c992cabfd380e0338f2
-- 
2.26.2