Hi all, On Fri, 17 Dec 2021 14:40:04 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > After merging the tip tree, today's linux-next build (x86_64 allmodconfig) > produced these warnings: > > lib/strnlen_user.o: warning: objtool: strnlen_user()+0xc9: call to do_strnlen_user() with UACCESS enabled > lib/strncpy_from_user.o: warning: objtool: strncpy_from_user()+0x129: call to do_strncpy_from_user() with UACCESS enabled > vmlinux.o: warning: objtool: mce_start()+0x5c: call to __kasan_check_write() leaves .noinstr.text section > vmlinux.o: warning: objtool: mce_gather_info()+0x5f: call to v8086_mode.constprop.0() leaves .noinstr.text section > vmlinux.o: warning: objtool: mce_read_aux()+0x8a: call to mca_msr_reg() leaves .noinstr.text section > vmlinux.o: warning: objtool: do_machine_check()+0x192: call to mce_no_way_out() leaves .noinstr.text section > vmlinux.o: warning: objtool: mce_severity_amd.constprop.0()+0xca: call to mce_severity_amd_smca() leaves .noinstr.text section > > I am not sure which changes caused the above. I currently still get the following warnings from an x86_64 allmodconfig build fo Linus' tree: vmlinux.o: warning: objtool: mce_start()+0x5c: call to __kasan_check_write() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_gather_info()+0x5f: call to v8086_mode.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_read_aux()+0x8a: call to mca_msr_reg() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0x192: call to mce_no_way_out() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_severity_amd.constprop.0()+0xca: call to mce_severity_amd_smca() leaves .noinstr.text section $ x86_64-linux-gnu-gcc --version x86_64-linux-gnu-gcc (Debian 11.2.0-9) 11.2.0 $ x86_64-linux-gnu-ld --version GNU ld (GNU Binutils for Debian) 2.37 -- Cheers, Stephen Rothwell
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