2 Commits

Author	SHA1	Message	Date
Christoph Hellwig	bfc4a245a7	dma-mapping: fix DMA API tracing for chained scatterlists ... scatterlist allocations can be chained, and thus all iterations need to use the chain-aware iterators. Switch the newly added tracing to use the proper iterators so that they work with chained scatterlists. Fixes: 038eb433dc ("dma-mapping: add tracing for dma-mapping API calls") Reported-by: syzbot+95e4ef83a3024384ec7a@syzkaller.appspotmail.com Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sean Anderson <sean.anderson@linux.dev> Tested-by: syzbot+95e4ef83a3024384ec7a@syzkaller.appspotmail.com	2024-09-26 20:08:12 +02:00
Sean Anderson	038eb433dc	dma-mapping: add tracing for dma-mapping API calls ... When debugging drivers, it can often be useful to trace when memory gets (un)mapped for DMA (and can be accessed by the device). Add some tracepoints for this purpose. Use u64 instead of phys_addr_t and dma_addr_t (and similarly %llx instead of %pa) because libtraceevent can't handle typedefs in all cases. Signed-off-by: Sean Anderson <sean.anderson@linux.dev> Signed-off-by: Christoph Hellwig <hch@lst.de>	2024-09-10 07:47:19 +03:00