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/phy/samsung/Makefile b/drivers/phy/samsung/Makefile
new file mode 100644
index 000000000..342682638
--- /dev/null
+++ b/drivers/phy/samsung/Makefile
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO)	+= phy-exynos-dp-video.o
+obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO)	+= phy-exynos-mipi-video.o
+obj-$(CONFIG_PHY_EXYNOS_PCIE)		+= phy-exynos-pcie.o
+obj-$(CONFIG_PHY_SAMSUNG_UFS)		+= phy-exynos-ufs.o
+phy-exynos-ufs-y			+= phy-gs101-ufs.o
+phy-exynos-ufs-y			+= phy-samsung-ufs.o
+phy-exynos-ufs-y			+= phy-exynos7-ufs.o
+phy-exynos-ufs-y			+= phy-exynosautov9-ufs.o
+phy-exynos-ufs-y			+= phy-exynosautov920-ufs.o
+phy-exynos-ufs-y			+= phy-fsd-ufs.o
+obj-$(CONFIG_PHY_SAMSUNG_USB2)		+= phy-exynos-usb2.o
+phy-exynos-usb2-y			+= phy-samsung-usb2.o
+phy-exynos-usb2-$(CONFIG_PHY_EXYNOS4210_USB2)	+= phy-exynos4210-usb2.o
+phy-exynos-usb2-$(CONFIG_PHY_EXYNOS4X12_USB2)	+= phy-exynos4x12-usb2.o
+phy-exynos-usb2-$(CONFIG_PHY_EXYNOS5250_USB2)	+= phy-exynos5250-usb2.o
+phy-exynos-usb2-$(CONFIG_PHY_S5PV210_USB2)	+= phy-s5pv210-usb2.o
+obj-$(CONFIG_PHY_EXYNOS5_USBDRD)	+= phy-exynos5-usbdrd.o
+obj-$(CONFIG_PHY_EXYNOS5250_SATA)	+= phy-exynos5250-sata.o