Messages in this thread | | | Date | Fri, 7 Sep 2012 12:20:35 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [RFC] DMA mapping error check analysis |
| |
On Fri, 7 Sep 2012, Shuah Khan wrote:
> I analyzed all calls to dma_map_single() and dma_map_page() in the > kernel, to see if callers check for mapping errors, before using the > returned address. > > The goal of this analysis is to find drivers that currently do not > check dma mapping errors, and fix them. > > I documented the results of this analysis: > > http://linuxdriverproject.org/mediawiki/index.php/DMA_Mapping_Error_Analysis > > Please review and give me feedback on the analysis and the proposed > next steps.
Your first table (dma_map_single) lists drivers/usb/core/usb.c and marks it as Bad. This is a mistake because the code is #ifdef'ed out. It hasn't been used in many years; it should be removed.
Alan Stern
| |