Commit 0c618145 authored Sep 15, 2015 by Eric Curtin Committed by Greg Kroah-Hartman Sep 22, 2015

tools: usbip: detach: avoid calling strlen() at each iteration



Instead of calling strlen on every iteration of the for loop, just call it
once and cache the result in a temporary local variable which will be used
in the for loop instead.

Signed-off-by: Eric Curtin <ericcurtin17@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 1f93e4a9

tools/usb/usbip/src/usbip_detach.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -47,7 +47,9 @@ static int detach_port(char *port)
		uint8_t portnum;
		char path[PATH_MAX+1];

		for (unsigned int i = 0; i < strlen(port); i++)
		unsigned int port_len = strlen(port);

		for (unsigned int i = 0; i < port_len; i++)
		if (!isdigit(port[i])) {
		err("invalid port %s", port);
		return -1;