Hi, Some usb drivers don't appear to need malloc(). I recently found this for umidi_quirks.c and decided to look further. The patch was built on i386.
- Michael Index: if_urtw.c =================================================================== RCS file: /cvs/src/sys/dev/usb/if_urtw.c,v retrieving revision 1.62 diff -u -p -u -r1.62 if_urtw.c --- if_urtw.c 13 Apr 2016 11:03:37 -0000 1.62 +++ if_urtw.c 9 Jan 2017 04:38:49 -0000 @@ -25,7 +25,6 @@ #include <sys/kernel.h> #include <sys/socket.h> #include <sys/systm.h> -#include <sys/malloc.h> #include <sys/timeout.h> #include <sys/conf.h> #include <sys/device.h> Index: ugold.c =================================================================== RCS file: /cvs/src/sys/dev/usb/ugold.c,v retrieving revision 1.12 diff -u -p -u -r1.12 ugold.c --- ugold.c 9 Jan 2016 04:14:42 -0000 1.12 +++ ugold.c 9 Jan 2017 04:38:54 -0000 @@ -26,7 +26,6 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> -#include <sys/malloc.h> #include <sys/device.h> #include <sys/sensors.h> Index: umass.c =================================================================== RCS file: /cvs/src/sys/dev/usb/umass.c,v retrieving revision 1.73 diff -u -p -u -r1.73 umass.c --- umass.c 3 Aug 2016 13:44:49 -0000 1.73 +++ umass.c 9 Jan 2017 04:39:14 -0000 @@ -130,7 +130,6 @@ #include <sys/conf.h> #include <sys/buf.h> #include <sys/device.h> -#include <sys/malloc.h> #include <sys/timeout.h> #undef KASSERT #define KASSERT(cond, msg) Index: uoak_subr.c =================================================================== RCS file: /cvs/src/sys/dev/usb/uoak_subr.c,v retrieving revision 1.7 diff -u -p -u -r1.7 uoak_subr.c --- uoak_subr.c 25 May 2015 12:53:12 -0000 1.7 +++ uoak_subr.c 9 Jan 2017 04:39:14 -0000 @@ -22,7 +22,6 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> -#include <sys/malloc.h> #include <sys/device.h> #include <sys/conf.h> #include <sys/sensors.h> Index: usbdi_util.c =================================================================== RCS file: /cvs/src/sys/dev/usb/usbdi_util.c,v retrieving revision 1.41 diff -u -p -u -r1.41 usbdi_util.c --- usbdi_util.c 14 Mar 2015 03:38:50 -0000 1.41 +++ usbdi_util.c 9 Jan 2017 04:39:14 -0000 @@ -35,7 +35,6 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> -#include <sys/malloc.h> #include <sys/device.h> #include <machine/bus.h> Index: uthum.c =================================================================== RCS file: /cvs/src/sys/dev/usb/uthum.c,v retrieving revision 1.31 diff -u -p -u -r1.31 uthum.c --- uthum.c 19 Mar 2016 11:34:22 -0000 1.31 +++ uthum.c 9 Jan 2017 04:39:19 -0000 @@ -21,7 +21,6 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> -#include <sys/malloc.h> #include <sys/device.h> #include <sys/conf.h> #include <sys/sensors.h>
