can-or-control: Add CFlags -Wextra -fno-common
can-or-control: timer.c|h fixes
can-or-control: fix: warning: statement with no effect [-Wunused-value]
can-or-control: timer.c: clean code
Merge branch 'can-or-control_add-CFlags' into can-or-control
Merge branch 'can-or-control'