Re: [PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-04 Thread Shuah Khan
On Thu, 2012-10-04 at 13:38 -0400, Konrad Rzeszutek Wilk wrote: > On Wed, Oct 03, 2012 at 08:55:59AM -0600, Shuah Khan wrote: > > A recent dma mapping error analysis effort showed that a large percentage > > of dma_map_single() and dma_map_page() returns are not checked for mapping > > errors. > >

Re: [PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-04 Thread Shuah Khan
On Thu, 2012-10-04 at 10:01 -0400, Konrad Rzeszutek Wilk wrote: > On Wed, Oct 03, 2012 at 02:45:11PM -0700, Andrew Morton wrote: > > On Wed, 03 Oct 2012 08:55:59 -0600 > > Shuah Khan wrote: > > > > > A recent dma mapping error analysis effort showed that a large percentage > > > of dma_map_single

Re: [PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-04 Thread Konrad Rzeszutek Wilk
On Wed, Oct 03, 2012 at 08:55:59AM -0600, Shuah Khan wrote: > A recent dma mapping error analysis effort showed that a large percentage > of dma_map_single() and dma_map_page() returns are not checked for mapping > errors. > > Reference: > http://linuxdriverproject.org/mediawiki/index.php/DMA_Mapp

Re: [PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-04 Thread Konrad Rzeszutek Wilk
On Wed, Oct 03, 2012 at 02:45:11PM -0700, Andrew Morton wrote: > On Wed, 03 Oct 2012 08:55:59 -0600 > Shuah Khan wrote: > > > A recent dma mapping error analysis effort showed that a large percentage > > of dma_map_single() and dma_map_page() returns are not checked for mapping > > errors. > > >

Re: [PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-03 Thread Andrew Morton
On Wed, 03 Oct 2012 08:55:59 -0600 Shuah Khan wrote: > A recent dma mapping error analysis effort showed that a large percentage > of dma_map_single() and dma_map_page() returns are not checked for mapping > errors. > > Reference: > http://linuxdriverproject.org/mediawiki/index.php/DMA_Mapping_E

[PATCH v3] dma-debug: New interfaces to debug dma mapping errors

2012-10-03 Thread Shuah Khan
A recent dma mapping error analysis effort showed that a large percentage of dma_map_single() and dma_map_page() returns are not checked for mapping errors. Reference: http://linuxdriverproject.org/mediawiki/index.php/DMA_Mapping_Error_Analysis Adding support for tracking dma mapping and unmappin