linux-toradex.git/kernel/trace/trace_seq.c, branch v5.17-rc5

tracing: Fix various typos in comments

2021-03-23T18:08:18+00:00

Fix ~59 single-word typos in the tracing code comments, and fix
the grammar in a handful of places.

Link: https://lore.kernel.org/r/20210322224546.GA1981273@gmail.com
Link: https://lkml.kernel.org/r/20210323174935.GA4176821@gmail.com

Reviewed-by: Randy Dunlap 
Signed-off-by: Ingo Molnar 
Signed-off-by: Steven Rostedt (VMware)

tracing: Remove unused TRACE_SEQ_BUF_USED

2020-01-21T23:39:54+00:00

This macro isn't used from commit 3a161d99c43c ("tracing: Create
seq_buf layer in trace_seq"). so no needs to keep it.

Link: http://lkml.kernel.org/r/1579586086-45543-1-git-send-email-alex.shi@linux.alibaba.com

Signed-off-by: Alex Shi 
Signed-off-by: Steven Rostedt (VMware)

tracing: Fix indentation issue

2020-01-03T20:20:46+00:00

There is a declaration that is indented one level too deeply, remove
the extraneous tab.

Link: http://lkml.kernel.org/r/20191221154825.33073-1-colin.king@canonical.com

Signed-off-by: Colin Ian King 
Signed-off-by: Steven Rostedt (VMware)

tracing: Use seq_buf_hex_dump() to dump buffers

2019-11-14T18:15:12+00:00

Without this, buffers can be printed with __print_array macro that has
no formatting options and can be hard to read. The other way is to
mimic formatting capability with multiple calls of trace event with one
call per row which gives performance impact and different timestamp in
each row.

Link: http://lkml.kernel.org/r/1573130738-29390-2-git-send-email-piotrx.maziarz@linux.intel.com

Signed-off-by: Piotr Maziarz 
Signed-off-by: Cezary Rojewski 
Signed-off-by: Steven Rostedt (VMware)

tracing: Add SPDX License format tags to tracing files

2018-08-16T23:08:06+00:00

Add the SPDX License header to ease license compliance management.

Signed-off-by: Steven Rostedt (VMware)

tracing: use %*pb[l] to print bitmaps including cpumasks and nodemasks

2015-02-14T05:21:37+00:00

printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.

Signed-off-by: Tejun Heo 
Cc: Steven Rostedt 
Cc: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tracing: Use trace_seq_used() and seq_buf_used() instead of len

2014-11-20T03:01:15+00:00

As the seq_buf->len will soon be +1 size when there's an overflow, we
must use trace_seq_used() or seq_buf_used() methods to get the real
length. This will prevent buffer overflow issues if just the len
of the seq_buf descriptor is used to copy memory.

Link: http://lkml.kernel.org/r/20141114121911.09ba3d38@gandalf.local.home

Reported-by: Petr Mladek 
Signed-off-by: Steven Rostedt

tracing: Convert seq_buf_path() to be like seq_path()

2014-11-20T03:01:10+00:00

Rewrite seq_buf_path() like it is done in seq_path() and allow
it to accept any escape character instead of just "\n".

Making seq_buf_path() like seq_path() will help prevent problems
when converting seq_file to use the seq_buf logic.

Link: http://lkml.kernel.org/r/20141104160222.048795666@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.338523371@goodmis.org

Tested-by: Jiri Kosina 
Acked-by: Jiri Kosina 
Reviewed-by: Petr Mladek 
Signed-off-by: Steven Rostedt

tracing: Create seq_buf layer in trace_seq

2014-11-20T03:01:09+00:00

Create a seq_buf layer that trace_seq sits on. The seq_buf will not
be limited to page size. This will allow other usages of seq_buf
instead of a hard set PAGE_SIZE one that trace_seq has.

Link: http://lkml.kernel.org/r/20141104160221.864997179@goodmis.org
Link: http://lkml.kernel.org/r/20141114011412.170377300@goodmis.org

Tested-by: Jiri Kosina 
Acked-by: Jiri Kosina 
Reviewed-by: Petr Mladek 
Signed-off-by: Steven Rostedt

tracing: Remove return values of most trace_seq_*() functions

2014-11-19T20:25:47+00:00

The trace_seq_printf() and friends are used to store strings into a buffer
that can be passed around from function to function. If the trace_seq buffer
fills up, it will not print any more. The return values were somewhat
inconsistant and using trace_seq_has_overflowed() was a better way to know
if the write to the trace_seq buffer succeeded or not.

Now that all users have removed reading the return value of the printf()
type functions, they can safely return void and keep future users of them
from reading the inconsistent values as well.

Link: http://lkml.kernel.org/r/20141114011411.992510720@goodmis.org

Signed-off-by: Steven Rostedt