ERROR: Macros with complex values should be enclosed in parentheses #91: FILE: drivers/net/wireless/mediatek/mt76/mt76.h:1296: +#define mt76_for_each_q_rx_napi(dev, i) \ + for (i = 0; i < ARRAY_SIZE((dev)->q_rx); i++) \ + if ((dev)->q_rx[i].napified || (dev)->q_rx[i].ndesc) 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, 0 checks, 188 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. Commit 23615d21eb5d ("wifi: mt76: mt7996: disable NAPI before deleting in dma_cleanup") has style problems, please review. NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS.