tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.10 head: 01ea2feb44f71247c0e7f236e3873fbd1c24c4ff commit: d04198090e12b270ac52275cb907e82712efaf74 [7/42] net: ipa: ignore CHANNEL_NOT_RUNNING errors config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable queue-5.10 git checkout d04198090e12b270ac52275cb907e82712efaf74 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/net/ipa/gsi.c: In function 'gsi_isr_gp_int1': 1074 | case GENERIC_EE_CHANNEL_NOT_RUNNING_FVAL: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ipa/gsi.c:1074:7: note: each undeclared identifier is reported only once for each function it appears in vim +/GENERIC_EE_CHANNEL_NOT_RUNNING_FVAL +1074 drivers/net/ipa/gsi.c 1048 1049 /* Generic EE interrupt handler */ 1050 static void gsi_isr_gp_int1(struct gsi *gsi) 1051 { 1052 u32 result; 1053 u32 val; 1054 1055 /* This interrupt is used to handle completions of the two GENERIC 1056 * GSI commands. We use these to allocate and halt channels on 1057 * the modem's behalf due to a hardware quirk on IPA v4.2. Once 1058 * allocated, the modem "owns" these channels, and as a result we 1059 * have no way of knowing the channel's state at any given time. 1060 * 1061 * It is recommended that we halt the modem channels we allocated 1062 * when shutting down, but it's possible the channel isn't running 1063 * at the time we issue the HALT command. We'll get an error in 1064 * that case, but it's harmless (the channel is already halted). 1065 * 1066 * For this reason, we silently ignore a CHANNEL_NOT_RUNNING error 1067 * if we receive it. 1068 */ 1069 val = ioread32(gsi->virt + GSI_CNTXT_SCRATCH_0_OFFSET); 1070 result = u32_get_bits(val, GENERIC_EE_RESULT_FMASK); 1071 1072 switch (result) { 1073 case GENERIC_EE_SUCCESS_FVAL: 1075 break; 1076 1077 default: 1078 dev_err(gsi->dev, "global INT1 generic result %u\n", result); 1079 break; 1080 } 1081 1082 complete(&gsi->completion); 1083 } 1084 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org