I changed my mind, and decided to try in following this new way. This series splits the cdc_ncm_ndp function in two parts: - one that finds NDP blocks already present in the SKB being sent out - one that pushes new ones, starting from where the _find function left. After this splitting it seems more easy to modify the location where the NDP is disposed. What do you think about this? >From now on, I need a little bit of help: I think we might work on the cdc_ncm_ndp16_push function, still I am open to any suggestion. Let me know if you like this. Enrico Enrico Mioso (2): cdc_ncm: add the currently processed NDP frame to global driver data cdc_ncm: split the cdc_ncm_ndp funciton drivers/net/usb/cdc_ncm.c | 30 +++++++++++++++++++++--------- include/linux/usb/cdc_ncm.h | 1 + 2 files changed, 22 insertions(+), 9 deletions(-) -- 2.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html