Re: [cocci] [PATCH] scripts/coccinelle: Add script for using ARRAY_END()

[Markus Elfring]

…
> This script makes it easy to find more places where that macro should be
> used.

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v7.0-rc3#n94


…
> +++ b/scripts/coccinelle/misc/array_end.cocci
> @@ -0,0 +1,93 @@
…


> +// Confidence: ???

I hope that a more reasonable value can be determined for this information.


…
> +// Comments:

Please omit such an empty field.


…
> +@i@
> +@@
> +
> +#include <linux/kernel.h>

I doubt that such an SmPL rule would be required.


> +
> +//----------------------------------------------------------
> +//  For context mode
> +//----------------------------------------------------------
> +

Please omit such extra comment lines.


> +@depends on i&&context@
> +type T;
> +T[] a;
> +expression b;
> +@@
> +(
> +* (a + ARRAY_SIZE(a))
> +|
> +* (&a[0] + ARRAY_SIZE(a))
> +|
> +* (&a[ARRAY_SIZE(a)])
> +|
> +* (&a[ARRAY_SIZE(a) - b])
> +)

Extra space characters may be omitted directly after SmPL asterisks.


…
> +@r depends on (org || report)@

You may omit parentheses here.


…
> +@script:python depends on report@
> +p << r.p;
> +@@
> +
> +msg="WARNING: Use ARRAY_END"
> +coccilib.report.print_report(p[0], msg)

Would the following command variant be a bit nicer?

coccilib.report.print_report(p[0], "WARNING: opportunity for ARRAY_END()")



By the way:
How do you think about to omit a cover letter for a single patch?

Regards,
Markus