o Avoid cancellation when using the "+" and "-" infix arithmetic
operators. For example, for a given variable "x", avoid
"(x-x)". There are similar arithmetic pitfalls from other
- arithmetic operatiors, such as "(x*0)", "(x/(x+1))" or "(x%1)".
+ arithmetic operators, such as "(x*0)", "(x/(x+1))" or "(x%1)".
The compiler is within its rights to substitute zero for all of
these expressions, so that subsequent accesses no longer depend
on the rcu_dereference(), again possibly resulting in bugs due