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Date: Tue, 11 Aug 2020 21:53:42 +0200 (CEST) From: Julia Lawall <julia.lawall@...ia.fr> To: Sumera Priyadarsini <sylphrenadin@...il.com> cc: Julia Lawall <Julia.Lawall@...6.fr>, michal.lkml@...kovi.net, linux-doc@...r.kernel.org, corbet@....net, gregkh@...uxfoundation.org, Gilles.Muller@...6.fr, nicolas.palix@...g.fr, linux-kernel@...r.kernel.org, cocci@...teme.lip6.fr Subject: Re: [Cocci] [PATCH v4] documentation: coccinelle: Improve command example for make C={1, 2} On Tue, 11 Aug 2020, Sumera Priyadarsini wrote: > Modify coccinelle documentation to further clarify > the usage of the makefile C variable by coccicheck. > > Signed-off-by: Sumera Priyadarsini <sylphrenadin@...il.com> Acked-by: Julia Lawall <julia.lawall@...ia.fr> Thanks. > > --- > Changes in v4: > - Modify commit message to clarify C is a variable > --- > 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 > > _______________________________________________ > Cocci mailing list > Cocci@...teme.lip6.fr > https://systeme.lip6.fr/mailman/listinfo/cocci >
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