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, 19 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
new file mode 100644
index 000000000..718cb2460
--- /dev/null
+++ b/drivers/usb/chipidea/Makefile
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# define_trace.h needs to know how to find our header
+CFLAGS_trace.o			:= -I$(src)
+obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o
+
+ci_hdrc-y				:= core.o otg.o debug.o ulpi.o
+ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)	+= udc.o trace.o
+ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)	+= host.o
+ci_hdrc-$(CONFIG_USB_OTG_FSM)		+= otg_fsm.o
+
+# Glue/Bridge layers go here
+
+obj-$(CONFIG_USB_CHIPIDEA_GENERIC)	+= ci_hdrc_usb2.o
+obj-$(CONFIG_USB_CHIPIDEA_MSM)		+= ci_hdrc_msm.o
+obj-$(CONFIG_USB_CHIPIDEA_NPCM)		+= ci_hdrc_npcm.o
+obj-$(CONFIG_USB_CHIPIDEA_PCI)		+= ci_hdrc_pci.o
+obj-$(CONFIG_USB_CHIPIDEA_IMX)		+= usbmisc_imx.o ci_hdrc_imx.o
+obj-$(CONFIG_USB_CHIPIDEA_TEGRA)	+= ci_hdrc_tegra.o