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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
commit9f0346dcbea363787186c94ef94dd01aaa215afa (patch)
treeb81c168f4d0dbe4c7f4750f4598d48a6deb72094 /scripts/include/hash.h
downloadlinux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.tar.gz
linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.zip
Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-coregrafted
Pull driver core fixes from Danilo Krummrich: - Fix kernfs listxattr() not returning security xattr names (e.g. SELinux labels) when the kernfs node has no allocated kernfs_iattrs - Fix silent truncation of IRQ vector indices in the Rust PCI abstractions - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is disabled instead of silently enabling extra kernel functionality - Russ Weight is retiring from kernel development; update the Firmware Loader sysfs contact to the driver-core mailing list, add a CREDITS entry for Firmware Upload, and update MAINTAINERS accordingly * tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Remove Russ Weight from Firmware Loader CREDITS: Add CREDITS entry for Firmware Upload firmware_loader: Change contact for sysfs nodes rust: pci: reject IRQ vector indices that do not fit in u32 kernfs: preserve security xattrs without allocating iattrs drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
Diffstat (limited to 'scripts/include/hash.h')
-rw-r--r--scripts/include/hash.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/scripts/include/hash.h b/scripts/include/hash.h
new file mode 100644
index 000000000..efa904368
--- /dev/null
+++ b/scripts/include/hash.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef HASH_H
+#define HASH_H
+
+static inline unsigned int hash_str(const char *s)
+{
+ /* fnv32 hash */
+ unsigned int hash = 2166136261U;
+
+ for (; *s; s++)
+ hash = (hash ^ *s) * 0x01000193;
+ return hash;
+}
+
+/* simplified version of functions from include/linux/hash.h */
+#define GOLDEN_RATIO_32 0x61C88647
+
+static inline unsigned int hash_32(unsigned int val)
+{
+ return 0x61C88647 * val;
+}
+
+static inline unsigned int hash_ptr(const void *ptr)
+{
+ return hash_32((unsigned int)(unsigned long)ptr);
+}
+
+#endif /* HASH_H */