redundantCopyLocalConst
ftp://ftp.de.debian.org/debian/pool/main/k/kinfocenter/kinfocenter_6.3.4.orig.tar.xz
head kinfocenter-6.3.4/kcms/usbview/kcmusb.cpp:108:20: performance:inconclusive: Use const reference for 'devices' to avoid unnecessary data copying. [redundantCopyLocalConst]