Hi Alexey, Probably my e-mail comments before the patch mislead you... If you download the kernel source and try to compile it, it won't work because of the INITRAMFS pointing to a non-existing directory. (check log below) That's why that option should be removed from the standard kernel. Regards, C.Palminha palminha at palminha-vm:~/src/kernels/linux-mainline-next$ make axs101_defconfig HOSTCC scripts/kconfig/conf.o HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf # # configuration written to .config # palminha at palminha-vm:~/src/kernels/linux-mainline-next$ make scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CC kernel/bounds.s CHK include/generated/bounds.h CHK include/generated/timeconst.h CC arch/arc/kernel/asm-offsets.s CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh HOSTCC scripts/dtc/dtc.o HOSTCC scripts/dtc/flattree.o HOSTCC scripts/dtc/fstree.o HOSTCC scripts/dtc/data.o HOSTCC scripts/dtc/livetree.o HOSTCC scripts/dtc/treesource.o HOSTCC scripts/dtc/srcpos.o HOSTCC scripts/dtc/checks.o HOSTCC scripts/dtc/util.o HOSTCC scripts/dtc/dtc-lexer.lex.o HOSTCC scripts/dtc/dtc-parser.tab.o HOSTLD scripts/dtc/dtc CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost HOSTCC scripts/kallsyms HOSTCC scripts/pnmtologo HOSTCC scripts/conmakehash HOSTCC scripts/sortextable CC init/main.o CHK include/generated/compile.h CC init/version.o CC init/do_mounts.o CC init/do_mounts_initrd.o LD init/mounts.o CC init/initramfs.o CC init/calibrate.o CC init/init_task.o LD init/built-in.o HOSTCC usr/gen_init_cpio ./scripts/gen_initramfs_list.sh: Cannot open '../arc_initramfs/' usr/Makefile:73: recipe for target 'usr/initramfs_data.cpio.gz' failed make[1]: *** [usr/initramfs_data.cpio.gz] Error 1 Makefile:943: recipe for target 'usr' failed make: *** [usr] Error 2 palminha at palminha-vm:~/src/kernels/linux-mainline-next$ On 07-01-2016 23:20, Alexey Brodkin wrote: > Hi Carlos, > > On Mon, 2016-01-04 at 14:55 +0000, palminha at synopsys.com wrote: >> From: Carlos Palminha <palminha at synopsys.com> >> >> Cannot compile kernel with INITRAMFS SOURCE option. >> Please move this option to a buildroot patch. > > First of all if your problem is only related to Buildroot then > there's not much sense in adding linux-snps-arc at lists.infradead.org > which is used for pure Linux kernel discussions. > > Then even in case of Buildroot CONFIG_INITRAMFS_SOURCE could be a problem > only if you don't set Buildroot's BR2_TARGET_ROOTFS_INITRAMFS=y, see > how it is done in snps_axs101_defconfig here > https://git.busybox.net/buildroot/tree/configs/snps_axs101_defconfig#n7 > > What happens if BR2_TARGET_ROOTFS_INITRAMFS=y then existing in kernel's > defconfig CONFIG_INITRAMFS_SOURCE gets overridden with new value, see > https://git.busybox.net/buildroot/tree/linux/linux.mk#n217 > > Now if you really want to not use built-in kernel initramfs then simplest > thing to do is to run "make linux-menuconfig" from your Buildroot's folder > and disable or set with nothing CONFIG_INITRAMFS_SOURCE. > > -Alexey >
