|WARNING| pw158064 [PATCH v11 4/9] lib/pmu: reimplement per-arch ops as callbacks

[checkpatch@dpdk.org]

Test-Label: checkpatch
Test-Status: WARNING
http://dpdk.org/patch/158064

_coding style issues_


ERROR:COMPLEX_MACRO: Macros with complex values should be enclosed in parentheses
#195: FILE: lib/pmu/pmu_private.h:19:
+#define PMU_SET_ARCH_OPS(ops) \
+	RTE_INIT(libpmu_set_arch_ops) \
+	{ \
+		arch_ops = &(ops); \
+	}

BUT SEE:

   do {} while (0) advice is over-stated in a few situations:

   The more obvious case is macros, like MODULE_PARM_DESC, invoked at
   file-scope, where C disallows code (it must be in functions).  See
   $exceptions if you have one to add by name.

   More troublesome is declarative macros used at top of new scope,
   like DECLARE_PER_CPU.  These might just compile with a do-while-0
   wrapper, but would be incorrect.  Most of these are handled by
   detecting struct,union,etc declaration primitives in $exceptions.

   Theres also macros called inside an if (block), which "return" an
   expression.  These cannot do-while, and need a ({}) wrapper.

   Enjoy this qualification while we work to improve our heuristics.

total: 1 errors, 0 warnings, 125 lines checked