Hi Will, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git cacheflush head: e0c396a5e4a3abbe8ac6bc19670f39f8e7b7b399 commit: 9e0ec2d6f8bc8b274b5471d194a03b7dd10e8832 [3/4] ARM: cacheflush: add new iovec-based cache flushing system call config: arm-at91_dt_defconfig # make ARCH=arm at91_dt_defconfig All error/warnings: arch/arm/kernel/entry-common.S: Assembler messages: arch/arm/kernel/entry-common.S:105: Error: non-constant expression in ".if" statement vim +105 arch/arm/kernel/entry-common.S 9fff2fa0 Al Viro 2012-10-10 89 cmp r5, #0 9fff2fa0 Al Viro 2012-10-10 90 movne r0, r4 9fff2fa0 Al Viro 2012-10-10 91 movne lr, pc 9fff2fa0 Al Viro 2012-10-10 92 movne pc, r5 ^1da177e Linus Torvalds 2005-04-16 93 get_thread_info tsk ^1da177e Linus Torvalds 2005-04-16 94 b ret_slow_syscall 93ed3970 Catalin Marinas 2008-08-28 95 ENDPROC(ret_from_fork) ^1da177e Linus Torvalds 2005-04-16 96 fa1b4f91 Al Viro 2006-01-19 97 .equ NR_syscalls,0 fa1b4f91 Al Viro 2006-01-19 98 #define CALL(x) .equ NR_syscalls,NR_syscalls+1 ^1da177e Linus Torvalds 2005-04-16 99 #include "calls.S" 1f66e06f Wade Farnsworth 2012-09-07 100 1f66e06f Wade Farnsworth 2012-09-07 101 /* 1f66e06f Wade Farnsworth 2012-09-07 102 * Ensure that the system call table is equal to __NR_syscalls, 1f66e06f Wade Farnsworth 2012-09-07 103 * which is the value the rest of the system sees 1f66e06f Wade Farnsworth 2012-09-07 104 */ 1f66e06f Wade Farnsworth 2012-09-07 @105 .ifne NR_syscalls - __NR_syscalls 1f66e06f Wade Farnsworth 2012-09-07 106 .error "__NR_syscalls is not equal to the size of the syscall table" 1f66e06f Wade Farnsworth 2012-09-07 107 .endif 1f66e06f Wade Farnsworth 2012-09-07 108 fa1b4f91 Al Viro 2006-01-19 109 #undef CALL fa1b4f91 Al Viro 2006-01-19 110 #define CALL(x) .long x ^1da177e Linus Torvalds 2005-04-16 111 606576ce Steven Rostedt 2008-10-06 112 #ifdef CONFIG_FUNCTION_TRACER 686ff228 Rabin Vincent 2010-08-03 113 /* The code at line 105 was first introduced by commit: 1f66e06 ARM: 7524/1: support syscall tracing --- 0-DAY kernel build testing backend Open Source Technology Center Fengguang Wu, Yuanhan Liu Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html