bpf: mark a NULL kfunc argument precisegrafted

check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.

Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/usb/dwc2/Makefile b/drivers/usb/dwc2/Makefile
new file mode 100644
index 000000000..2bcd6945d
--- /dev/null
+++ b/drivers/usb/dwc2/Makefile
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0
+ccflags-$(CONFIG_USB_DWC2_DEBUG)	+= -DDEBUG
+ccflags-$(CONFIG_USB_DWC2_VERBOSE)	+= -DVERBOSE_DEBUG
+
+obj-$(CONFIG_USB_DWC2)			+= dwc2.o
+dwc2-y					:= core.o core_intr.o platform.o drd.o
+dwc2-y					+= params.o
+
+ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
+	dwc2-y				+= hcd.o hcd_intr.o
+	dwc2-y				+= hcd_queue.o hcd_ddma.o
+endif
+
+ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
+	dwc2-y       			+= gadget.o
+endif
+
+ifneq ($(CONFIG_DEBUG_FS),)
+	dwc2-y				+= debugfs.o
+endif
+
+# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to
+# this location and renamed gadget.c. When building for dynamically linked
+# modules, dwc2.ko will get built for host mode, peripheral mode, and dual-role
+# mode. The PCI bus interface module will called dwc2_pci.ko and the platform
+# interface module will be called dwc2_platform.ko.
+
+obj-$(CONFIG_USB_DWC2_PCI)		+= dwc2_pci.o
+dwc2_pci-y				:= pci.o