Find a kernel function line

Introduction
Often in dmesg messages you have function names,for instance: [  71.030609] msm_adsp_disable 'AUDPREPROCTASK' In order to get the line number and source file path do: c029ff0c t msm_adsp_disable_locked c029ff68 T msm_adsp_disable c047fe98 r __ksymtab_msm_adsp_disable c049030e r __kstrtab_msm_adsp_disable notice the c029ff68,we will use it with addr2line: msm_adsp_disable /home/gnutoo/embedded/htcdream/SHR/kernel/linux/sound/soc/msm/adsp.c:1033
 * 1) grep msm_adsp_disable System.map
 * 1) arm-none-linux-gnueabi-addr2line -f -e vmlinux c029ff68