14f4cfa6cSMauro Carvalho ChehabClearing WARN_ONCE 24f4cfa6cSMauro Carvalho Chehab------------------ 34f4cfa6cSMauro Carvalho Chehab 44f4cfa6cSMauro Carvalho ChehabWARN_ONCE / WARN_ON_ONCE / printk_once only emit a message once. 54f4cfa6cSMauro Carvalho Chehab 64f4cfa6cSMauro Carvalho Chehabecho 1 > /sys/kernel/debug/clear_warn_once 74f4cfa6cSMauro Carvalho Chehab 84f4cfa6cSMauro Carvalho Chehabclears the state and allows the warnings to print once again. 94f4cfa6cSMauro Carvalho ChehabThis can be useful after test suite runs to reproduce problems. 10