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[bpf-next,v2,1/5] bpftool: Fix documentation about line info display for prog dumps

Message ID 20230327110655.58363-2-quentin@isovalent.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series bpftool: Add inline annotations when dumping program CFGs | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR success PR summary
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 20 this patch: 20
netdev/cc_maintainers warning 4 maintainers not CCed: wangyufen@huawei.com martin.lau@linux.dev deso@posteo.net song@kernel.org
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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Commit Message

Quentin Monnet March 27, 2023, 11:06 a.m. UTC 
The documentation states that when line_info is available when dumping a
program, the source line will be displayed "by default". There is no
notion of "default" here: the line is always displayed if available,
there is no way currently to turn it off.

In the next sentence, the documentation states that if "linum" is used
on the command line, the relevant filename, line, and column will be
displayed "on top of the source line". This is incorrect, as they are
currently displayed on the right side of the source line (or on top of
the eBPF instruction, not the source).

This commit fixes the documentation to address these points.

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
---
 tools/bpf/bpftool/Documentation/bpftool-prog.rst | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
index 14de72544995..06d1e4314406 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst
@@ -106,9 +106,8 @@  DESCRIPTION
 		  CFG in DOT format, on standard output.
 
 		  If the programs have line_info available, the source line will
-		  be displayed by default.  If **linum** is specified,
-		  the filename, line number and line column will also be
-		  displayed on top of the source line.
+		  be displayed.  If **linum** is specified, the filename, line
+		  number and line column will also be displayed.
 
 	**bpftool prog dump jited**  *PROG* [{ **file** *FILE* | **opcodes** | **linum** }]
 		  Dump jited image (host machine code) of the program.
@@ -120,9 +119,8 @@  DESCRIPTION
 		  **opcodes** controls if raw opcodes will be printed.
 
 		  If the prog has line_info available, the source line will
-		  be displayed by default.  If **linum** is specified,
-		  the filename, line number and line column will also be
-		  displayed on top of the source line.
+		  be displayed.  If **linum** is specified, the filename, line
+		  number and line column will also be displayed.
 
 	**bpftool prog pin** *PROG* *FILE*
 		  Pin program *PROG* as *FILE*.