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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: mpe@ellerman.id.au, Qian Cai <cai@lca.pw>
Cc: linuxppc-dev@lists.ozlabs.org, rashmicy@gmail.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] powerpc/64s/pgtable: fix an undefined behaviour
Date: Tue,  9 Jun 2020 15:28:34 +1000 (AEST)	[thread overview]
Message-ID: <159168031307.1381411.14671547649283777399.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <20200306044852.3236-1-cai@lca.pw>

On Thu, 5 Mar 2020 23:48:52 -0500, Qian Cai wrote:
> Booting a power9 server with hash MMU could trigger an undefined
> behaviour because pud_offset(p4d, 0) will do,
> 
> 0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
> 
> Fix it by converting pud_index() and friends to static inline
> functions.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/64s/pgtable: fix an undefined behaviour
      https://git.kernel.org/powerpc/c/c2e929b18cea6cbf71364f22d742d9aad7f4677a

cheers

      parent reply	other threads:[~2020-06-09  5:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06  4:48 [PATCH v3] powerpc/64s/pgtable: fix an undefined behaviour Qian Cai
2020-03-06  6:56 ` Christophe Leroy
2020-05-09 13:19   ` Qian Cai
2020-06-09  5:28 ` Michael Ellerman [this message]

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