On Thu, Mar 10, 2022 at 09:51:12AM +0000, Sudip Mukherjee wrote: > On Thu, Mar 10, 2022 at 9:18 AM Greg Kroah-Hartman > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > On Wed, Mar 09, 2022 at 06:08:19PM +0000, Sudip Mukherjee wrote: > > > Hi Greg, > > > > > > On Wed, Mar 9, 2022 at 4:03 PM Greg Kroah-Hartman > > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > > > > This is the start of the stable review cycle for the 4.19.234 release. > > > > There are 18 patches in this series, all will be posted as a response > > > > to this one. If anyone has any issues with these being applied, please > > > > let me know. > > > > > > > > Responses should be made by Fri, 11 Mar 2022 15:58:48 +0000. > > > > Anything received after that time might be too late. > > > > > > My tests are still running, but just an initial result for you, > > > > > > x86_64 defconfig fails with: > > > arch/x86/kernel/cpu/bugs.c: In function 'spectre_v2_select_mitigation': > > > arch/x86/kernel/cpu/bugs.c:973:41: error: implicit declaration of > > > function 'unprivileged_ebpf_enabled' > > > [-Werror=implicit-function-declaration] > > > 973 | if (mode == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled()) > > > > It's in a .h file, how can it be undefined? Must be a include path > > somewhere, let me dig... > > Looks like the problem is that both "static inline bool > unprivileged_ebpf_enabled(void)" are in the "#ifdef > CONFIG_BPF_SYSCALL" section of include/linux/bpf.h. > I think the one returning false should be in the #else section. Ah, good catch! I've fixed this up for 4.19 and 5.4 now, will do some build tests and then push out new -rc2 release for all branches as I think that should be all of the reported problems fixed. Now on to the next new round of build failures! :) thanks, greg k-h