From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- Documentation/driver-api/dmaengine/index.rst | 48 ++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/driver-api/dmaengine/index.rst (limited to 'Documentation/driver-api/dmaengine/index.rst') diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst new file mode 100644 index 000000000..e74677c66 --- /dev/null +++ b/Documentation/driver-api/dmaengine/index.rst @@ -0,0 +1,48 @@ +======================= +DMAEngine documentation +======================= + +DMAEngine documentation provides documents for various aspects of DMAEngine +framework. + +DMAEngine development documentation +----------------------------------- + +This book helps with DMAengine internal APIs and guide for DMAEngine device +driver writers. + +.. toctree:: + :maxdepth: 1 + + provider + +DMAEngine client documentation +------------------------------ + +This book is a guide to device driver writers on how to use the Slave-DMA +API of the DMAEngine. This is applicable only for slave DMA usage only. + +.. toctree:: + :maxdepth: 1 + + client + +DMA Test documentation +---------------------- + +This book introduces how to test DMA drivers using dmatest module. + +.. toctree:: + :maxdepth: 1 + + dmatest + +PXA DMA documentation +---------------------- + +This book adds some notes about PXA DMA + +.. toctree:: + :maxdepth: 1 + + pxa_dma -- cgit v1.3.1