bpf: allow more maps in sleepable bpf programs

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These 2 maps types are required for HID-BPF when a user wants to do
IO with a device from a sleepable tracing point.

Allowing BPF_MAP_TYPE_QUEUE (and therefore BPF_MAP_TYPE_STACK) allows
for a BPF program to prepare from an IRQ the list of HID commands to send
back to the device and then these commands can be retrieved from the
sleepable trace point.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240221-hid-bpf-sleepable-v3-1-1fb378ca6301@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Benjamin Tissoires 2024-02-21 17:25:17 +01:00 • committed by Alexei Starovoitov

parent 63c7049ef9

commit 55bad79e33

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kernel/bpf/verifier.c

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