Carl Huang <cjhuang@xxxxxxxxxxxxxx> wrote: > ath10k_pci_diag_write_mem may allocate big size of the dma memory > based on the parameter nbytes. Take firmware diag download as > example, the biggest size is about 500K. In some systems, the > allocation is likely to fail because it can't acquire such a large > contiguous dma memory. > > The fix is to allocate a small size dma memory. In the loop, > driver copies the data to the allocated dma memory and writes to > the destination until all the data is written. > > Tested with QCA6174 PCI with > firmware-6.bin_WLAN.RM.4.4.1-00119-QCARMSWP-1, this also affects > QCA9377 PCI. > > Signed-off-by: Carl Huang <cjhuang@xxxxxxxxxxxxxx> > Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 0738b4998c6d ath10k: allocate small size dma memory in ath10k_pci_diag_write_mem -- https://patchwork.kernel.org/patch/10636245/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
