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, 27 insertions, 0 deletions

diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
new file mode 100644
index 000000000..69860a60b
--- /dev/null
+++ b/drivers/parisc/Makefile
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile PCI and non-PCI devices in PA-RISC machines
+#
+# Keep the order below, e.g.
+# - ccio before any potential subdevices
+# - gsc is required before lasi and wax
+# - asp and wax before the EISA adapters for the IRQ regions
+# - EISA must come before PCI to be sure it gets IRQ region
+#
+
+obj-$(CONFIG_IOSAPIC)		+= iosapic.o
+obj-$(CONFIG_IOMMU_SBA)		+= sba_iommu.o
+obj-$(CONFIG_PCI_LBA)		+= lba_pci.o
+obj-$(CONFIG_IOMMU_CCIO)	+= ccio-dma.o
+
+obj-$(CONFIG_GSC)		+= gsc.o
+obj-$(CONFIG_GSC_LASI)		+= lasi.o asp.o
+obj-$(CONFIG_GSC_WAX)		+= wax.o
+obj-$(CONFIG_EISA)		+= eisa.o eisa_enumerator.o eisa_eeprom.o
+obj-$(CONFIG_HPPB)		+= hppb.o
+obj-$(CONFIG_GSC_DINO)		+= dino.o
+
+obj-$(CONFIG_SUPERIO)		+= superio.o
+obj-$(CONFIG_CHASSIS_LCD_LED)	+= led.o
+obj-$(CONFIG_PDC_STABLE)	+= pdc_stable.o
+obj-y				+= power.o