'\" t
.\"     Title: dma_pool_alloc
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: Memory Management in Linux
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "DMA_POOL_ALLOC" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "Memory Management in Linux"
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.SH "NAME"
dma_pool_alloc \- get a block of consistent memory
.SH "SYNOPSIS"
.HP \w'void\ *\ dma_pool_alloc('u
.BI "void * dma_pool_alloc(struct\ dma_pool\ *\ " "pool" ", gfp_t\ " "mem_flags" ", dma_addr_t\ *\ " "handle" ");"
.SH "ARGUMENTS"
.PP
\fIstruct dma_pool * pool\fR
.RS 4
dma pool that will produce the block
.RE
.PP
\fIgfp_t mem_flags\fR
.RS 4
GFP_* bitmask
.RE
.PP
\fIdma_addr_t * handle\fR
.RS 4
pointer to dma address of block
.RE
.SH "DESCRIPTION"
.PP
This returns the kernel virtual address of a currently unused block, and reports its dma address through the handle\&. If such a memory block can\*(Aqt be allocated,
\fBNULL\fR
is returned\&.
.SH "COPYRIGHT"
.br