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, 28 insertions, 0 deletions

diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile
new file mode 100644
index 000000000..9128a06b8
--- /dev/null
+++ b/drivers/clk/at91/Makefile
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for at91 specific clk
+#
+
+obj-y += pmc.o sckc.o
+obj-y += clk-slow.o clk-main.o clk-pll.o clk-plldiv.o clk-master.o
+obj-y += clk-system.o clk-peripheral.o clk-programmable.o
+
+obj-$(CONFIG_HAVE_AT91_AUDIO_PLL)	+= clk-audio-pll.o
+obj-$(CONFIG_HAVE_AT91_UTMI)		+= clk-utmi.o
+obj-$(CONFIG_HAVE_AT91_USB_CLK)		+= clk-usb.o
+obj-$(CONFIG_HAVE_AT91_SMD)		+= clk-smd.o
+obj-$(CONFIG_HAVE_AT91_H32MX)		+= clk-h32mx.o
+obj-$(CONFIG_HAVE_AT91_GENERATED_CLK)	+= clk-generated.o
+obj-$(CONFIG_HAVE_AT91_I2S_MUX_CLK)	+= clk-i2s-mux.o
+obj-$(CONFIG_HAVE_AT91_SAM9X60_PLL)	+= clk-sam9x60-pll.o
+obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o dt-compat.o
+obj-$(CONFIG_SOC_AT91SAM9) += at91sam9260.o at91sam9rl.o at91sam9x5.o dt-compat.o
+obj-$(CONFIG_SOC_AT91SAM9) += at91sam9g45.o dt-compat.o
+obj-$(CONFIG_SOC_AT91SAM9) += at91sam9n12.o at91sam9x5.o dt-compat.o
+obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o
+obj-$(CONFIG_SOC_SAM9X7) += sam9x7.o
+obj-$(CONFIG_SOC_SAMA5D3) += sama5d3.o dt-compat.o
+obj-$(CONFIG_SOC_SAMA5D4) += sama5d4.o dt-compat.o
+obj-$(CONFIG_SOC_SAMA5D2) += sama5d2.o dt-compat.o
+obj-$(CONFIG_SOC_SAMA7D65) += sama7d65.o
+obj-$(CONFIG_SOC_SAMA7G5) += sama7g5.o