[PATCH net v3] net: airoha: Add dma_rmb() and READ_ONCE() in airoha_qdma_rx_process()

Jakub Kicinski kuba at kernel.org
Thu Apr 9 20:35:38 PDT 2026


On Tue, 07 Apr 2026 08:48:04 +0200 Lorenzo Bianconi wrote:
> Add missing dma_rmb() in airoha_qdma_rx_process routine to make sure the
> DMA read operations are completed when the NIC reports the processing on
> the current descriptor is done. Moreover, add missing READ_ONCE() in
> airoha_qdma_rx_process() for DMA descriptor control fields in order to
> avoid any compiler reordering.

Sashiko seems to have more orthogonal complaints FWIW



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