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| author | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2023-01-11 23:23:33 +0000 |
|---|---|---|
| committer | Jean-Sébastien Pédron <dumbbell@FreeBSD.org> | 2023-01-25 21:26:54 +0000 |
| commit | 4fee6659c42c264e17dad7625f8663a45594d46b (patch) | |
| tree | 6d8d0e81fcf5056c21e77017f94ffc1634f636c9 | |
| parent | 0d4d9ee6f0f9379f3de6e2c684dab19922eda705 (diff) | |
| download | src-4fee6659c42c264e17dad7625f8663a45594d46b.tar.gz src-4fee6659c42c264e17dad7625f8663a45594d46b.zip | |
linuxkpi: Add `sysfs_emit()`
Reviewed by: manu
Approved by: manu
Differential Revision: https://reviews.freebsd.org/D38086
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/sysfs.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/sysfs.h b/sys/compat/linuxkpi/common/include/linux/sysfs.h index e6b8ad210f16..b9689a367c90 100644 --- a/sys/compat/linuxkpi/common/include/linux/sysfs.h +++ b/sys/compat/linuxkpi/common/include/linux/sysfs.h @@ -37,6 +37,7 @@ #include <linux/kobject.h> #include <linux/stringify.h> +#include <linux/mm.h> struct sysfs_ops { ssize_t (*show)(struct kobject *, struct attribute *, char *); @@ -295,6 +296,24 @@ sysfs_streq(const char *s1, const char *s2) return (l1 == l2 && strncmp(s1, s2, l1) == 0); } +static inline int +sysfs_emit(char *buf, const char *fmt, ...) +{ + va_list args; + int i; + + if (!buf || offset_in_page(buf)) { + pr_warn("invalid sysfs_emit: buf:%p\n", buf); + return (0); + } + + va_start(args, fmt); + i = vscnprintf(buf, PAGE_SIZE, fmt, args); + va_end(args); + + return (i); +} + #define sysfs_attr_init(attr) do {} while(0) #endif /* _LINUXKPI_LINUX_SYSFS_H_ */ |