This is a note to let you know that I've just added the patch titled riscv: Fixup compile error with !MMU to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: riscv-fixup-compile-error-with-mmu.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From c528ef0888b75f673f7d48022de8d31d5b451e8c Mon Sep 17 00:00:00 2001 From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Date: Wed, 7 Dec 2022 04:11:12 -0500 Subject: riscv: Fixup compile error with !MMU From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> commit c528ef0888b75f673f7d48022de8d31d5b451e8c upstream. Current nommu_virt_defconfig can't compile: In file included from arch/riscv/kernel/crash_core.c:3: arch/riscv/kernel/crash_core.c: In function 'arch_crash_save_vmcoreinfo': arch/riscv/kernel/crash_core.c:8:27: error: 'VA_BITS' undeclared (first use in this function) 8 | VMCOREINFO_NUMBER(VA_BITS); | ^~~~~~~ Add MMU dependency for KEXEC_FILE. Fixes: 6261586e0c91 ("RISC-V: Add kexec_file support") Reported-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Guo Ren <guoren@xxxxxxxxxx> Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Tested-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20221207091112.2258674-1-guoren@xxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/riscv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -502,7 +502,7 @@ config KEXEC_FILE select KEXEC_CORE select KEXEC_ELF select HAVE_IMA_KEXEC if IMA - depends on 64BIT + depends on 64BIT && MMU help This is new version of kexec system call. This system call is file based and takes file descriptors as system call argument Patches currently in stable-queue which might be from guoren@xxxxxxxxxxxxxxxxx are queue-6.1/riscv-fixup-compile-error-with-mmu.patch queue-6.1/riscv-stacktrace-fixup-ftrace_graph_ret_addr-retp-argument.patch