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SubjectRe: [Cocci] [PATCH v3] documentation: coccinelle: Improve command example for make C={1, 2}


On Mon, 10 Aug 2020, Sumera Priyadarsini wrote:

> Modify coccinelle documentation to further clarify
> the usage of the makefile C variable flag by coccicheck.
>
> Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>

Thanks.

Acked-by: Julia Lawall <julia.lawall@inria.fr>



>
> ---
> Changes in v3:
> - Remove quotes as suggested by Markus Elfring
> - Change in wording, and punctuation, as suggested by Julia Lawall
> ---
> Documentation/dev-tools/coccinelle.rst | 15 +++++++++++----
> 1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst
> index 6c791af1c859..74c5e6aeeff5 100644
> --- a/Documentation/dev-tools/coccinelle.rst
> +++ b/Documentation/dev-tools/coccinelle.rst
> @@ -175,13 +175,20 @@ For example, to check drivers/net/wireless/ one may write::
> make coccicheck M=drivers/net/wireless/
>
> To apply Coccinelle on a file basis, instead of a directory basis, the
> -following command may be used::
> +C variable is used by the makefile to select which files to work with.
> +This variable can be used to run scripts for the entire kernel, a
> +specific directory, or for a single file.
>
> - make C=1 CHECK="scripts/coccicheck"
> +For example, to check drivers/bluetooth/bfusb.c, the value 1 is
> +passed to the C variable to check files that make considers
> +need to be compiled.::
>
> -To check only newly edited code, use the value 2 for the C flag, i.e.::
> + make C=1 CHECK=scripts/coccicheck drivers/bluetooth/bfusb.o
>
> - make C=2 CHECK="scripts/coccicheck"
> +The value 2 is passed to the C variable to check files regardless of
> +whether they need to be compiled or not.::
> +
> + make C=2 CHECK=scripts/coccicheck drivers/bluetooth/bfusb.o
>
> In these modes, which work on a file basis, there is no information
> about semantic patches displayed, and no commit message proposed.
> --
> 2.17.1
>
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> Cocci@systeme.lip6.fr
> https://systeme.lip6.fr/mailman/listinfo/cocci
>

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