On Mon, Nov 13, 2023 at 01:28:27AM +0000, Kuninori Morimoto wrote: > Current ASoC CPU:Codec = N:M connection is using connection mapping idea, > but it is used for N < M case only. We want to use it for any case. > > By this patch, not only N:M connection, but all existing connection > (1:1, 1:N, N:N) will use same connection mapping. Then, because it will > use default mapping, no conversion patch is needed to exising drivers. The KernelCI bisection bot has reported that this is breaking boot on meson-g12a-u200 in -next with a defconfig+debug configuration: <1>[ 39.211516][ T39] Unable to handle kernel paging request at virtual address f999199999999999 <1>[ 39.215123][ T39] KASAN: maybe wild-memory-access in range [0xccccccccccccccc8-0xcccccccccccccccf] ... <4>[ 39.498854][ T39] x5 : 1fffe00001b50887 x4 : 0000000000000001 x3 : ffff000013f44be8 <4>[ 39.506914][ T39] x2 : dfff800000000000 x1 : 1999999999999999 x0 : 0000000000000007 <4>[ 39.514975][ T39] Call trace: <4>[ 39.518356][ T39] snd_soc_compensate_channel_connection_map+0x210/0x578 <4>[ 39.525461][ T39] snd_soc_bind_card+0x368/0x1280 <4>[ 39.530575][ T39] snd_soc_register_card+0x2e8/0x3e0 <4>[ 39.535949][ T39] devm_snd_soc_register_card+0x58/0xd8 <4>[ 39.541581][ T39] meson_card_probe+0x25c/0x388 [snd_soc_meson_card_utils] <4>[ 39.548864][ T39] platform_probe+0xcc/0x240 Full boot log here: https://storage.kernelci.org/mainline/master/v6.8-rc7-250-g137e0ec05aeb/arm64/defconfig+debug/gcc-10/lab-baylibre/baseline-meson-g12a-u200.txt with the config here: https://storage.kernelci.org/mainline/master/v6.8-rc7-250-g137e0ec05aeb/arm64/defconfig+debug/gcc-10/config/ The full bot report is here: https://groups.io/g/kernelci-results/message/52435 and everything does look plausible about the failure.
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