On Thu, Nov 16, 2017 at 08:37:58PM +0000, Mathieu Desnoyers wrote:

I usually never space-align with open parenthesis "(". Is it a coding
style requirement of the kernel for multi-line if () conditions ?

Not sure, but it is the predominant pattern in most of the code.

Would the following replatement code be ok ?

        if (unlikely(flags & RSEQ_CS_FLAG_NO_RESTART_ON_SIGNAL)) {
                if ((flags & (RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE
                                | RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT)) !=
                                (RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE
                                | RSEQ_CS_FLAG_NO_RESTART_ON_PREEMPT))
                        return -EINVAL;

I really prefer the operator at the end,

git grep "&&$" | wc -l
40708

git grep "^[[:space:]]*&&" | wc -l
3901