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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-02-23 15:22:06 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-03-18 10:33:05 -0400 |
| commit | c759e609030ca37e59866cbc849fdc611cc56292 (patch) | |
| tree | 6617839da12845247f8dd0048678616a5a050569 /samples | |
| parent | d15304135c7f6cbcbf9e6e37814de495a56d51f8 (diff) | |
| download | lwn-c759e609030ca37e59866cbc849fdc611cc56292.tar.gz lwn-c759e609030ca37e59866cbc849fdc611cc56292.zip | |
tracing: Remove __assign_str_len()
Now that __assign_str() gets the length from the __string() (and
__string_len()) macros, there's no reason to have a separate
__assign_str_len() macro as __assign_str() can get the length of the
string needed.
Also remove __assign_rel_str() although it had no users anyway.
Link: https://lore.kernel.org/linux-trace-kernel/20240223152206.0b650659@gandalf.local.home
Cc: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/trace_events/trace-events-sample.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h index 23f923ccd529..f2d2d56ce8e2 100644 --- a/samples/trace_events/trace-events-sample.h +++ b/samples/trace_events/trace-events-sample.h @@ -163,8 +163,7 @@ * __string(). * * __string_len: This is a helper to a __dynamic_array, but it understands - * that the array has characters in it, and with the combined - * use of __assign_str_len(), it will allocate 'len' + 1 bytes + * that the array has characters in it, it will allocate 'len' + 1 bytes * in the ring buffer and add a '\0' to the string. This is * useful if the string being saved has no terminating '\0' byte. * It requires that the length of the string is known as it acts @@ -174,9 +173,11 @@ * * __string_len(foo, bar, len) * - * To assign this string, use the helper macro __assign_str_len(). + * To assign this string, use the helper macro __assign_str(). + * The length is saved via the __string_len() and is retrieved in + * __assign_str(). * - * __assign_str_len(foo, bar, len); + * __assign_str(foo, bar); * * Then len + 1 is allocated to the ring buffer, and a nul terminating * byte is added. This is similar to: |