Ashok Raj Nagarajan <[email protected]> wrote: > diag_read uses dma_alloc_coherent to allocate memory requested by the > caller. If this memory requested is larger, more than DIAG_TRANSFER_LIMIT > (2K), then it is likely that we may not get the requested memory and we > would fail. > > To solve this, request dma_alloc_coherent for only DIAG_TRANSFER_LIMIT, and > reuse this buffer multiple times as needed to copy the data requested in > smaller chunks of size not more than DIAG_TRANSFER_LIMIT. Previously we > were reading into the caller's only after getting the complete requested > data. > > Fixes: 68c03249f388 ('ath10k: convert pci_alloc_consistent() to > dma_alloc_coherent()') > Signed-off-by: Ashok Raj Nagarajan <[email protected]>
Thanks, 1 patch applied to ath.git: 1e56d5127d5c ath10k: fix diag_read to collect data for larger memory -- Sent by pwcli https://patchwork.kernel.org/patch/9135561/ _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
