Adding sysfs__read_xll function to be able to read sysfs files with hex numbers in, which do not have 0x prefix.
Link: http://lkml.kernel.org/n/tip-j5ullvrcli5ga3hn6692t...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/lib/api/fs/fs.c | 15 +++++++++++++-- tools/lib/api/fs/fs.h | 1 + 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index 8b0e4a4315bd..6a12bbf39f7b 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -432,7 +432,8 @@ int procfs__read_str(const char *entry, char **buf, size_t *sizep) return filename__read_str(path, buf, sizep); } -int sysfs__read_ull(const char *entry, unsigned long long *value) +static int sysfs__read_ull_base(const char *entry, + unsigned long long *value, int base) { char path[PATH_MAX]; const char *sysfs = sysfs__mountpoint(); @@ -442,7 +443,17 @@ int sysfs__read_ull(const char *entry, unsigned long long *value) snprintf(path, sizeof(path), "%s/%s", sysfs, entry); - return filename__read_ull(path, value); + return filename__read_ull_base(path, value, base); +} + +int sysfs__read_xll(const char *entry, unsigned long long *value) +{ + return sysfs__read_ull_base(entry, value, 16); +} + +int sysfs__read_ull(const char *entry, unsigned long long *value) +{ + return sysfs__read_ull_base(entry, value, 0); } int sysfs__read_int(const char *entry, int *value) diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h index 8ebee35a6395..92d03b8396b1 100644 --- a/tools/lib/api/fs/fs.h +++ b/tools/lib/api/fs/fs.h @@ -40,6 +40,7 @@ int procfs__read_str(const char *entry, char **buf, size_t *sizep); int sysctl__read_int(const char *sysctl, int *value); int sysfs__read_int(const char *entry, int *value); int sysfs__read_ull(const char *entry, unsigned long long *value); +int sysfs__read_xll(const char *entry, unsigned long long *value); int sysfs__read_str(const char *entry, char **buf, size_t *sizep); int sysfs__read_bool(const char *entry, bool *value); -- 2.13.6
