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(parent: b8b2c7d) | patch
CMA: fix CONFIG_CMA_SIZE_MBYTES overflow in 64bit
authorTan Xiaojun <tanxiaojun@huawei.com>
Thu, 24 Sep 2015 03:27:47 +0000 (11:27 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Oct 2015 03:49:54 +0000 (04:49 +0100)
commita785ce9c90bc7d73b5cae4388641b310948509cb
treeca3b9e2c8c4e37a4cea558c56a6312373117b06dtree | snapshot (tar.gz zip)
parentb8b2c7d845d57f7a4b9f1f941f24728165e27626commit | diff
CMA: fix CONFIG_CMA_SIZE_MBYTES overflow in 64bit

In 64bit system, if you set CONFIG_CMA_SIZE_MBYTES>=2048, it will
overflow and size_bytes will be a big wrong number.

Set CONFIG_CMA_SIZE_MBYTES=2048 and you will get an info below
during system boot:

*********
cma: Failed to reserve 17592186042368 MiB
*********

Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/base/dma-contiguous.c diff | blob | blame | history