r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/seq/timer\x00', 0x0, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ffd000/0x1000)=nil, 0x1000, 0x0, 0x40a0013, r0, 0x0)