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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Michael Ellerman <mpe@ellerman.id.au>, linuxppc-dev@ozlabs.org
Cc: aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [v2] selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable
Date: Mon,  5 Mar 2018 23:36:14 +1100 (AEDT)	[thread overview]
Message-ID: <3zvzsp4KpBz9sZk@ozlabs.org> (raw)
In-Reply-To: <20180302020108.22174-1-mpe@ellerman.id.au>

On Fri, 2018-03-02 at 02:01:08 UTC, Michael Ellerman wrote:
> The subpage_prot syscall is only functional when the system is using
> the Hash MMU. Since commit 5b2b80714796 ("powerpc/mm: Invalidate
> subpage_prot() system call on radix platforms") it returns ENOENT when
> the Radix MMU is active. Currently this just makes the test fail.
> 
> Additionally the syscall is not available if the kernel is built with
> 4K pages, or if CONFIG_PPC_SUBPAGE_PROT=n, in which case it returns
> ENOSYS because the syscall is missing entirely.
> 
> So check explicitly for ENOENT and ENOSYS and skip if we see either of
> those.
> 
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

Applied to powerpc fixes.

https://git.kernel.org/powerpc/c/cd4a6f3ab4d80cb919d15897eb3cbc

cheers

      reply	other threads:[~2018-03-05 12:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-02  2:01 [PATCH v2] selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable Michael Ellerman
2018-03-05 12:36 ` Michael Ellerman [this message]

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