From: Heikki Krogerus Date: Thu, 5 Dec 2024 11:39:19 +0000 (+0200) Subject: usb: typec: intel_pmc_mux: Silence snprintf() output truncation warning X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ded71f07f92f83b7695f974db9951a8b014cbefc;p=users%2Fhch%2Fmisc.git usb: typec: intel_pmc_mux: Silence snprintf() output truncation warning In the function pmc_mux_port_debugfs_init() the buffer for the name of the port is limited to six bytes. That makes the compiler think that the output of "port%d" may be truncated. That can't actually happen as the interface can support maximum of eight ports. To make the compiler happy just increase the buffer to where the warning goes away. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202412031437.vX580pxx-lkp@intel.com/ Cc: Rajat Khandelwal Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/r/20241205113919.1182673-1-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index 5dfe95754394..65dda9183e6f 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -718,7 +718,7 @@ DEFINE_SHOW_ATTRIBUTE(port_iom_status); static void pmc_mux_port_debugfs_init(struct pmc_usb_port *port) { struct dentry *debugfs_dir; - char name[6]; + char name[8]; snprintf(name, sizeof(name), "port%d", port->usb3_port - 1);