Commit 4d24f88f authored Jan 19, 2016 by Shiraz Hashim Committed by Prasad Sodagudi Jan 20, 2016

cma: skip kmemleak for common cma region



Several clients allocate buffers  out of common cma region
using DMA_ATTR_NO_KERNEL_MAPPING attribute. Since this
removes kernel mapping for these buffers, calling kmemleak
scan crashes accessing such regions. Hence Skip kmemleak
for common cma region.

Change-Id: I019677433dcd3c89839e73d1c71d2691732e408a
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>

parent d434c03e

mm/cma.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,7 @@
		#include <linux/cma.h>
		#include <linux/highmem.h>
		#include <linux/delay.h>
		#include <linux/kmemleak.h>
		#include <trace/events/cma.h>

		#include "cma.h"
		@@ -311,6 +312,9 @@ int __init cma_declare_contiguous(phys_addr_t base,
		}
		}

		if (addr < highmem_start)
		kmemleak_no_scan(__va(addr));

		base = addr;
		}