s390/pci_dma: simplify dma address calculation

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Simplify the code we use to calculate dma addresses by putting
everything related in a dma_alloc_address function. Also provide
a dma_free_address counterpart.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Sebastian Ott 2016-08-17 13:51:11 +02:00 • committed by Martin Schwidefsky

parent 3b13f1fea1

commit 8cb63b7879

1 changed files with 18 additions and 19 deletions

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arch/s390/pci/pci_dma.c

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