With CONFIG_KVM_GUEST=y, the following part of entry_32.S causes this compile failure: [...] AS arch/x86/kernel/entry_32.o arch/x86/kernel/entry_32.S: Assembler messages: arch/x86/kernel/entry_32.S:1421: Error: .size expression with symbol `apf_page_fault' does not evaluate to a constant 1409 #ifdef CONFIG_KVM_GUEST 1410 ENTRY(async_page_fault) 1411 RING0_EC_FRAME 1412 pushl $do_async_page_fault 1413 CFI_ADJUST_CFA_OFFSET 4 1414 jmp error_code 1415 CFI_ENDPROC 1416 END(apf_page_fault) 1417 #endif Replace apf_page_fault with async_page_fault, as intended. The problem occured with a binutils including PR gas/12519. An output like above can be seen with a binutils from upstream containing: commit b9521fc0be7945fc842ce1197e241a023378125d "Mention symbol name in non-constant .size expression." The issue was introduced by: commit 631bc4878220932fe67fc46fc7cf7cccdb1ec597 "KVM: Handle async PF in a guest." Thanks Alexander for providing a more descriptive text. Acked-by: Alexander van Heukelum <heukelum@xxxxxxxxxxx> CC: Ingo Molnar <mingo@xxxxxxx> CC: H. Peter Anvin <hpa@xxxxxxxxx> CC: H.J. Lu <hjl.tools@xxxxxxxxx> CC: Jan Beulich <JBeulich@xxxxxxxxxx> CC: Stratos Psomadakis <psomas@xxxxxxxxxxxxxxxxx> Signed-off-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> --- arch/x86/kernel/entry_32.S | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index 2878821..f7cffb2 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1412,7 +1412,7 @@ ENTRY(async_page_fault) pushl_cfi $do_async_page_fault jmp error_code CFI_ENDPROC -END(apf_page_fault) +END(async_page_fault) #endif /* -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
