I had encountered same problem. And i solved by some procedures below: Step 1: linux-next check out to latest version, backports also checkout to master and apply ccm patch. Step 2: generate tree by ./gentree.py --verbose --clean ~/linux-next/ ~/backports-output Step 3: modify DECLARE_EWMA(signal, 10, 8) to DECLARE_EWMA(signal, 2014, 8) in ../mac80211/sta_info.h of backports-output Step 4: modify "skb=idr_remove(...);" to "skb=idr_find(...); if (skb) idr_remove(...);" in ../mac80211/status.h of backports-output Step 5: Target linux kernel (the lower version or your specific version ) need to be compiled first. Step 6: export KLIB_BUILD="path/to/your_lower_linux_kernel" Step 7: export KLIB="path/to/your/build/object" (I am about to get *.ko, thus i point the directory to backports-output) Step 8: make defconfig-your_choice (I am using defconfig-ath10k) Step 9: make the backports-output and wait to compile. My compile environment is Ubuntu16.04 with kernel 4.4 and I am porting ath10k in linux kernel 4.11 back to linux 4.2. I hope this information will help you. On Wed, Mar 29, 2017 at 4:19 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > >> tbl->locks = kvmalloc(size * sizeof(spinlock_t), gfp); > > Looks like we need to backport kvmalloc(), and perhaps something around > the free as well. > >> Is there any fix for that? > > No, not yet, but shouldn't be hard. > > johannes > -- > To unsubscribe from this list: send the line "unsubscribe backports" in -- 吳重毅 Wu Chung-yi -- To unsubscribe from this list: send the line "unsubscribe backports" in
