On 5/20/25 06:49, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 5.15.184 release. There are 59 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 Thu, 22 May 2025 12:57:37 +0000. Anything received after that time might be too late.
Build reference: v5.15.184 Compiler version: x86_64-linux-gcc (GCC) 12.4.0 Assembler version: GNU assembler (GNU Binutils) 2.40
Configuration file workarounds: "s/CONFIG_FRAME_WARN=.*/CONFIG_FRAME_WARN=0/"
Building i386:defconfig ... passed Building i386:allyesconfig ... failed -------------- Error log: x86_64-linux-ld: arch/x86/kernel/static_call.o: in function `__static_call_transform': static_call.c:(.ref.text+0x46): undefined reference to `cpu_wants_rethunk_at' make[1]: [Makefile:1234: vmlinux] Error 1 (ignored) -------------- Building i386:allmodconfig ... failed -------------- Error log: x86_64-linux-ld: arch/x86/kernel/static_call.o: in function `__static_call_transform': static_call.c:(.ref.text+0x46): undefined reference to `cpu_wants_rethunk_at' make[1]: [Makefile:1234: vmlinux] Error 1 (ignored) --------------
In v5.15.y, cpu_wants_rethunk_at is only built if CONFIG_STACK_VALIDATION=y, but that is not supported for i386 builds. The dummy function in arch/x86/include/asm/alternative.h doesn't take that dependency into account.
Guenter