[PATCH v3] userdiff: Fix some corner cases in dts regex
- From
Stephen Boyd <sboyd@kernel.org>
- Date
- Oct 20, 2019, 18:52 UTC
- Message-ID
- <20191020185230.212875-1-sboyd@kernel.org>
While reviewing some dts diffs recently I noticed that the hunk header logic was failing to find the containing node. This is because the regex doesn't consider properties that may span multiple lines, i.e.
property = <something>, <something_else>;
and it got hung up on comments inside nodes that look like the root node because they start with '/*'. Add tests for these cases and update the regex to find them. Maybe detecting the root node is too complicated but forcing it to be a backslash with any amount of whitespace up to an open bracket seemed OK. I tried to detect that a comment is in-between the two parts but I wasn't happy so I just dropped it.
Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> ---
Changes from v2: * Updated test to be really multiline.
Changes from v1: * Added a new boolean property unit test * Updated the regex to simplify multi-line property skipping * Added some space to multieline prop test between cells in first property
t/t4018/dts-nodes-boolean-prop | 9 +++++++++ t/t4018/dts-nodes-multiline-prop | 13 +++++++++++++ t/t4018/dts-root | 2 +- t/t4018/dts-root-comment | 8 ++++++++ userdiff.c | 3 ++- 5 files changed, 33 insertions(+), 2 deletions(-) create mode 100644 t/t4018/dts-nodes-boolean-prop create mode 100644 t/t4018/dts-nodes-multiline-prop create mode 100644 t/t4018/dts-root-comment
diff --git a/t/t4018/dts-nodes-boolean-prop b/t/t4018/dts-nodes-boolean-prop new file mode 100644 index 000000000000..afc6b5b404e4 --- /dev/null +++ b/t/t4018/dts-nodes-boolean-prop @@ -0,0 +1,9 @@ +/ { + label_1: node1@ff00 { + RIGHT@deadf00,4000 { + boolean-prop1; + + ChangeMe; + }; + }; +}; diff --git a/t/t4018/dts-nodes-multiline-prop b/t/t4018/dts-nodes-multiline-prop new file mode 100644 index 000000000000..072d58b69dc2 --- /dev/null +++ b/t/t4018/dts-nodes-multiline-prop @@ -0,0 +1,13 @@ +/ { + label_1: node1@ff00 { + RIGHT@deadf00,4000 { + multilineprop = <3>, + <4>, + <5>, + <6>, + <7>; + + ChangeMe = <0xffeedd00>; + }; + }; +}; diff --git a/t/t4018/dts-root b/t/t4018/dts-root index 2ef9e6ffaa2c..4353b8220c91 100644 --- a/t/t4018/dts-root +++ b/t/t4018/dts-root @@ -1,4 +1,4 @@ -/RIGHT { /* Technically just supposed to be a slash */ +/ { RIGHT /* Technically just supposed to be a slash and brace */ #size-cells = <1>; ChangeMe = <0xffeedd00>; diff --git a/t/t4018/dts-root-comment b/t/t4018/dts-root-comment new file mode 100644 index 000000000000..333a625c7007 --- /dev/null +++ b/t/t4018/dts-root-comment @@ -0,0 +1,8 @@ +/ { RIGHT /* Technically just supposed to be a slash and brace */ + #size-cells = <1>; + + /* This comment should be ignored */ + + some-property = <40+2>; + ChangeMe = <0xffeedd00>; +}; diff --git a/userdiff.c b/userdiff.c index 86e3244e15dd..e187d356f6ff 100644 --- a/userdiff.c +++ b/userdiff.c @@ -25,8 +25,9 @@ IPATTERN("ada", "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"), PATTERNS("dts", "!;\n" + "!=\n" /* lines beginning with a word optionally preceded by '&' or the root */ - "^[ \t]*((/|&?[a-zA-Z_]).*)", + "^[ \t]*((/[ \t]*\\{|&?[a-zA-Z_]).*)", /* -- */ /* Property names and math operators */ "[a-zA-Z0-9,._+?#-]+"
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