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authorMark Brown <broonie@kernel.org>2026-09-30 13:13:36 +0100
committerMark Brown <broonie@kernel.org>2026-09-30 13:13:36 +0100
commit1d2642c1a986c32241604d53f259795e0bed8f35 (patch)
treefa69d29714f4b6b72387132aacb20f3950edcc5b /samples
parent88d6478ff3a017842c6fafba826a38752c13bc5f (diff)
parentacff58e305175df35985082b0e79103a2497f702 (diff)
downloadlinux-next-1d2642c1a986c32241604d53f259795e0bed8f35.tar.gz
linux-next-1d2642c1a986c32241604d53f259795e0bed8f35.zip
Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
# Conflicts: # arch/arm64/net/bpf_jit_comp.c # arch/x86/net/bpf_jit_comp.c # mm/internal.h
Diffstat (limited to 'samples')
-rw-r--r--samples/bpf/Makefile1
-rw-r--r--samples/bpf/hash_func01.h55
2 files changed, 1 insertions, 55 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 95a4fa1f1e44..c28e65046986 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -342,6 +342,7 @@ $(obj)/xdp_router_ipv4.bpf.o: $(obj)/xdp_sample.bpf.o
$(obj)/%.bpf.o: $(src)/%.bpf.c $(obj)/vmlinux.h $(src)/xdp_sample.bpf.h $(src)/xdp_sample_shared.h
@echo " CLANG-BPF " $@
$(Q)$(CLANG) -g -O2 --target=bpf -D__TARGET_ARCH_$(SRCARCH) \
+ -fms-extensions -Wno-microsoft-anon-tag \
-Wno-compare-distinct-pointer-types -I$(srctree)/include \
-I$(srctree)/samples/bpf -I$(srctree)/tools/include \
-I$(LIBBPF_INCLUDE) $(CLANG_SYS_INCLUDES) \
diff --git a/samples/bpf/hash_func01.h b/samples/bpf/hash_func01.h
deleted file mode 100644
index 38255812e376..000000000000
--- a/samples/bpf/hash_func01.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1
- *
- * Based on Paul Hsieh's (LGPG 2.1) hash function
- * From: http://www.azillionmonkeys.com/qed/hash.html
- */
-
-#define get16bits(d) (*((const __u16 *) (d)))
-
-static __always_inline
-__u32 SuperFastHash (const char *data, int len, __u32 initval) {
- __u32 hash = initval;
- __u32 tmp;
- int rem;
-
- if (len <= 0 || data == NULL) return 0;
-
- rem = len & 3;
- len >>= 2;
-
- /* Main loop */
-#pragma clang loop unroll(full)
- for (;len > 0; len--) {
- hash += get16bits (data);
- tmp = (get16bits (data+2) << 11) ^ hash;
- hash = (hash << 16) ^ tmp;
- data += 2*sizeof (__u16);
- hash += hash >> 11;
- }
-
- /* Handle end cases */
- switch (rem) {
- case 3: hash += get16bits (data);
- hash ^= hash << 16;
- hash ^= ((signed char)data[sizeof (__u16)]) << 18;
- hash += hash >> 11;
- break;
- case 2: hash += get16bits (data);
- hash ^= hash << 11;
- hash += hash >> 17;
- break;
- case 1: hash += (signed char)*data;
- hash ^= hash << 10;
- hash += hash >> 1;
- }
-
- /* Force "avalanching" of final 127 bits */
- hash ^= hash << 3;
- hash += hash >> 5;
- hash ^= hash << 4;
- hash += hash >> 17;
- hash ^= hash << 25;
- hash += hash >> 6;
-
- return hash;
-}