From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Christoph Hellwig <hch@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
npiggin@gmail.com, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 10/10] powerpc/mm: refactor ioremap_range() and use ioremap_page_range()
Date: Wed, 14 Aug 2019 08:23:54 +0200 [thread overview]
Message-ID: <3f866bc8-7cc3-cb09-92f3-016dfb906526@c-s.fr> (raw)
In-Reply-To: <20190814054941.GC27497@infradead.org>
Le 14/08/2019 à 07:49, Christoph Hellwig a écrit :
> Somehow this series is missing a cover letter.
>
> While you are touching all this "fun" can you also look into killing
> __ioremap? It seems to be a weird non-standard version of ioremap_prot
> (probably predating ioremap_prot) that is missing a few lines of code
> setting attributes that might not even be applicable for the two drivers
> calling it.
>
ocm_init_node() [arch/powerpc/platforms/4xx/ocm.c] calls __ioremap()
with _PAGE_EXEC set while ioremap_prot() clears _PAGE_EXEC
Christophe
next prev parent reply other threads:[~2019-08-14 6:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 20:11 [PATCH v1 01/10] powerpc/mm: drop ppc_md.iounmap() Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 02/10] powerpc/mm: rework io-workaround invocation Christophe Leroy
2019-08-14 5:38 ` Christoph Hellwig
2019-08-13 20:11 ` [PATCH v1 03/10] powerpc/mm: move common 32/64 bits ioremap functions into ioremap.c Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 04/10] powerpc/mm: move ioremap_prot() " Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 05/10] powerpc/mm: Do early ioremaps from top to bottom on PPC64 too Christophe Leroy
2019-08-14 5:55 ` Christoph Hellwig
2019-08-14 6:10 ` Christophe Leroy
2019-08-14 6:14 ` Christoph Hellwig
2019-08-19 13:42 ` Nicholas Piggin
2019-08-20 0:20 ` Michael Ellerman
2019-08-20 5:10 ` Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 06/10] powerpc/mm: make ioremap_bot common to all Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 07/10] powerpc/mm: move iounmap() into ioremap.c and drop __iounmap() Christophe Leroy
2019-08-19 12:55 ` Michael Ellerman
2019-08-13 20:11 ` [PATCH v1 08/10] powerpc/mm: move __ioremap_at() and __iounmap_at() into ioremap.c Christophe Leroy
2019-08-14 5:23 ` Christoph Hellwig
2019-08-20 0:18 ` Michael Ellerman
2019-08-13 20:11 ` [PATCH v1 09/10] powerpc/mm: make __ioremap_caller() common to PPC32 and PPC64 Christophe Leroy
2019-08-13 20:11 ` [PATCH v1 10/10] powerpc/mm: refactor ioremap_range() and use ioremap_page_range() Christophe Leroy
2019-08-14 5:49 ` Christoph Hellwig
2019-08-14 6:23 ` Christophe Leroy [this message]
2019-08-14 6:30 ` Christoph Hellwig
2019-08-14 5:19 ` [PATCH v1 01/10] powerpc/mm: drop ppc_md.iounmap() Christoph Hellwig
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