From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dma-mapping: preallocate DMA-debug hash tables in pure_initcall
Date: Tue, 15 Nov 2016 11:31:34 +0100 [thread overview]
Message-ID: <3289056.5bg7xtivbS@wuerfel> (raw)
In-Reply-To: <1479204295-29773-1-git-send-email-m.szyprowski@samsung.com>
On Tuesday, November 15, 2016 11:04:55 AM CET Marek Szyprowski wrote:
> fs_initcall is definitely too late to initialize DMA-debug hash tables,
> because some drivers might get probed and use DMA mapping framework
> already in core_initcall. Late initialization of DMA-debug results in
> false warning about accessing memory, that was not allocated, like this
> one:
To ask the obvious question: what driver does DMA allocations in a
core_initcall, and have you tried to change that first?
Arnd
next prev parent reply other threads:[~2016-11-15 10:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20161115100459eucas1p152b644d5d329192a0902c836b13f35ba@eucas1p1.samsung.com>
2016-11-15 10:04 ` [PATCH] ARM: dma-mapping: preallocate DMA-debug hash tables in pure_initcall Marek Szyprowski
2016-11-15 10:31 ` Arnd Bergmann [this message]
2016-11-15 10:39 ` Marek Szyprowski
2016-11-15 11:18 ` Arnd Bergmann
2016-11-15 12:40 ` Russell King - ARM Linux
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