Author: kevans
Date: Thu Mar 15 19:41:26 2018
New Revision: 331021
URL: https://svnweb.freebsd.org/changeset/base/331021
Log:
r322279: Don't create /dev/efi without EFI runtime
Turns out to be even simpler to just not create /dev/efi if we don't
have a efi runtime.
Modified:
stable/11/sys/dev/efidev/efidev.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/efidev/efidev.c
==============================================================================
--- stable/11/sys/dev/efidev/efidev.c Thu Mar 15 19:32:33 2018
(r331020)
+++ stable/11/sys/dev/efidev/efidev.c Thu Mar 15 19:41:26 2018
(r331021)
@@ -39,28 +39,15 @@ __FBSDID("$FreeBSD$");
#include <machine/efi.h>
#include <sys/efiio.h>
-static d_open_t efidev_open;
static d_ioctl_t efidev_ioctl;
static struct cdevsw efi_cdevsw = {
.d_name = "efi",
.d_version = D_VERSION,
- .d_open = efidev_open,
.d_ioctl = efidev_ioctl,
};
static int
-efidev_open(struct cdev *dev __unused, int oflags __unused,
- int devtype __unused, struct thread *td __unused)
-{
- /*
- * Only return success when we have an actual runtime to call.
- */
-
- return efi_rt_ok();
-}
-
-static int
efidev_ioctl(struct cdev *dev __unused, u_long cmd, caddr_t addr,
int flags __unused, struct thread *td __unused)
{
@@ -195,6 +182,11 @@ efidev_modevents(module_t m, int event, void *arg __un
switch (event) {
case MOD_LOAD:
+ /*
+ * If we have no efi environment, then don't create the device.
+ */
+ if (efi_rt_ok() != 0)
+ return (0);
make_dev_args_init(&mda);
mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME;
mda.mda_devsw = &efi_cdevsw;
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