Date: Tue, 21 Apr 2026 22:27:13 +0000 From: Jean-=?utf-8?Q?S=C3=A9bast?==?utf-8?Q?ien P=C3=A9?=dron <dumbbell@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: cefd0ae770bf - main - linuxkpi: Add several `guid_*()` functions Message-ID: <69e7f9c1.38a87.42abba7c@gitrepo.freebsd.org>
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The branch main has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=cefd0ae770bfad534ec666099489a869387e8836 commit cefd0ae770bfad534ec666099489a869387e8836 Author: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> AuthorDate: 2026-04-13 22:36:18 +0000 Commit: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> CommitDate: 2026-04-21 22:18:25 +0000 linuxkpi: Add several `guid_*()` functions The DRM generic code and the amdgpu DRM driver started to use several of these functions in Linux 6.12. Likewise for `UUID_SIZE`. Reviewed by: bz Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D56448 --- sys/compat/linuxkpi/common/include/linux/uuid.h | 27 +++++++++++++++++++++++++ sys/compat/linuxkpi/common/src/linux_compat.c | 3 +++ 2 files changed, 30 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/uuid.h b/sys/compat/linuxkpi/common/include/linux/uuid.h index 4f6f4a8b34f0..0765ef4dcc1e 100644 --- a/sys/compat/linuxkpi/common/include/linux/uuid.h +++ b/sys/compat/linuxkpi/common/include/linux/uuid.h @@ -33,6 +33,7 @@ #include <linux/random.h> +#define UUID_SIZE 16 #define UUID_STRING_LEN 36 #define GUID_INIT(x0_3, x4_5, x6_7, x8, x9, x10, x11, x12, x13, x14, x15) \ @@ -59,6 +60,8 @@ typedef struct { char x[16]; } guid_t; +extern const guid_t guid_null; + static inline void guid_gen(guid_t *g) { @@ -68,10 +71,34 @@ guid_gen(guid_t *g) g->x[8] = (g->x[8] & 0x3f) | 0x80; } +static inline bool +guid_equal(const guid_t *u1, const guid_t *u2) +{ + return (memcmp(u1, u2, sizeof(guid_t)) == 0); +} + static inline void guid_copy(guid_t *dst, const guid_t *src) { memcpy(dst, src, sizeof(*dst)); } +static inline void +import_guid(guid_t *dst, const uint8_t *src) +{ + memcpy(dst, src, sizeof(guid_t)); +} + +static inline void +export_guid(uint8_t *dst, const guid_t *src) +{ + memcpy(dst, src, sizeof(guid_t)); +} + +static inline bool +guid_is_null(const guid_t *guid) +{ + return (guid_equal(guid, &guid_null)); +} + #endif /* _LINUXKPI_LINUX_UUID_H */ diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c index 8fc644241d79..0c7032fa6e23 100644 --- a/sys/compat/linuxkpi/common/src/linux_compat.c +++ b/sys/compat/linuxkpi/common/src/linux_compat.c @@ -98,6 +98,7 @@ #include <linux/interval_tree_generic.h> #include <linux/printk.h> #include <linux/seq_file.h> +#include <linux/uuid.h> #if defined(__i386__) || defined(__amd64__) #include <asm/smp.h> @@ -164,6 +165,8 @@ unsigned long linux_timer_hz_mask; wait_queue_head_t linux_bit_waitq; wait_queue_head_t linux_var_waitq; +const guid_t guid_null; + int panic_cmp(struct rb_node *one, struct rb_node *two) {home | help
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