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| author | Denis Efremov <efremov@linux.com> | 2021-04-28 09:03:50 +0300 |
|---|---|---|
| committer | Julia Lawall <Julia.Lawall@inria.fr> | 2021-05-01 21:27:10 +0200 |
| commit | aeb300c1dbfc77b493728f608dd14d6814676546 (patch) | |
| tree | 1b4bddc69fd4193e1e262b5fdf96b14a164bd5ed /scripts | |
| parent | 32c465613959248a8db8a1458d65a266411ddccc (diff) | |
| download | linux-aeb300c1dbfc77b493728f608dd14d6814676546.tar.gz linux-aeb300c1dbfc77b493728f608dd14d6814676546.tar.bz2 linux-aeb300c1dbfc77b493728f608dd14d6814676546.zip | |
coccinelle: misc: minmax: suppress patch generation for err returns
There is a standard idiom for "if 'ret' holds an error, return it":
return ret < 0 ? ret : 0;
Developers prefer to keep the things as they are because stylistic
change to "return min(ret, 0);" breaks readability.
Let's suppress automatic generation for this type of patches.
Signed-off-by: Denis Efremov <efremov@linux.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/coccinelle/misc/minmax.cocci | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/scripts/coccinelle/misc/minmax.cocci b/scripts/coccinelle/misc/minmax.cocci index eccdd3eb3452..fcf908b34f27 100644 --- a/scripts/coccinelle/misc/minmax.cocci +++ b/scripts/coccinelle/misc/minmax.cocci @@ -116,16 +116,32 @@ func(...) ...> } +// Don't generate patches for errcode returns. +@errcode depends on patch@ +position p; +identifier func; +expression x; +binary operator cmp = {<, <=}; +@@ + +func(...) +{ + <... + return ((x) cmp@p 0 ? (x) : 0); + ...> +} + @pmin depends on patch@ identifier func; expression x, y; binary operator cmp = {<=, <}; +position p != errcode.p; @@ func(...) { <... -- ((x) cmp (y) ? (x) : (y)) +- ((x) cmp@p (y) ? (x) : (y)) + min(x, y) ...> } |