Symbol: PERF_BUF_LEN
drivers/ntb/test/ntb_perf.c
1270
buf = kmalloc(PERF_BUF_LEN, GFP_KERNEL);
drivers/ntb/test/ntb_perf.c
1274
ret = perf_read_stats(perf, buf, PERF_BUF_LEN, &pos);