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SubjectRe: linux-next: build failure after merge of the nand tree
Hi Paul,

Paul Cercueil <paul@crapouillou.net> wrote on Tue, 02 Apr 2019 14:00:14
+0200:

> Hi Miquel,
>
> Le mar. 2 avril 2019 à 13:56, Miquel Raynal <miquel.raynal@bootlin.com> a écrit :
> > Hi Paul,
> >
> > Paul Cercueil <paul@crapouillou.net> wrote on Tue, 02 Apr 2019 > 01:31:52
> > +0200:
> >
> >> Hi Stephen,
> >> >> Le mar. 2 avril 2019 à 1:14, Stephen Rothwell >> <sfr@canb.auug.org.au> a écrit :
> >> > Hi all,
> >> >
> >> > After merging the nand tree, today's linux-next build (x86_64
> >> > allmodconfig) failed like this:
> >> >
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:26:5: error: >> redefinition > of 'ingenic_ecc_calculate'
> >> > int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
> >> > ^~~~~~~~~~~~~~~~~~~~~
> >> > In file included from >> drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:14:
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:39:5: note: previous > >> definition of 'ingenic_ecc_calculate' was here
> >> > int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
> >> > ^~~~~~~~~~~~~~~~~~~~~
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:47:5: error: >> redefinition > of 'ingenic_ecc_correct'
> >> > int ingenic_ecc_correct(struct ingenic_ecc *ecc,
> >> > ^~~~~~~~~~~~~~~~~~~
> >> > In file included from >> drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:14:
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:46:5: note: previous > >> definition of 'ingenic_ecc_correct' was here
> >> > int ingenic_ecc_correct(struct ingenic_ecc *ecc,
> >> > ^~~~~~~~~~~~~~~~~~~
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:93:21: error: >> redefinition > of 'of_ingenic_ecc_get'
> >> > struct ingenic_ecc *of_ingenic_ecc_get(struct device_node >> *of_node)
> >> > ^~~~~~~~~~~~~~~~~~
> >> > In file included from >> drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:14:
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:57:21: note: previous >> > definition of 'of_ingenic_ecc_get' was here
> >> > struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np)
> >> > ^~~~~~~~~~~~~~~~~~
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:119:6: error: >> redefinition > of 'ingenic_ecc_release'
> >> > void ingenic_ecc_release(struct ingenic_ecc *ecc)
> >> > ^~~~~~~~~~~~~~~~~~~
> >> > In file included from >> drivers/mtd/nand/raw/ingenic/ingenic_ecc.c:14:
> >> > drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:53:6: note: previous > >> definition of 'ingenic_ecc_release' was here
> >> > void ingenic_ecc_release(struct ingenic_ecc *ecc)
> >> > ^~~~~~~~~~~~~~~~~~~
> >> >
> >> > Caused by commit
> >> >
> >> > 8278ad0d709a ("mtd: rawnand: ingenic: Separate top-level and >> SoC > specific code")
> >> >
> >> > I have used the nand tree from next-20190401 for today.
> >> >> That makes no sense to me; from the offsets of the errors in the >> ingenic_ecc.h
> >> file, it seems that CONFIG_MTD_NAND_INGENIC_ECC is not set, and in >> this case
> >> ingenic_ecc.c should not be compiled at all.
> >> > > I think
> >
> > #ifdef FOO
> >
> > evaluates to true if
> >
> > FOO=y
> >
> > while we can have
> >
> > FOO=m
> >
> > which is evaluated to false, hence the double definition with
> > allmodconfig.
>
> That's good to know, I guess I'll have to start using IS_DEFINED()
> from now on.
>
> > Here is a diff solving the issue, if you are fine with it I will
> > correct in-place and push -f nand/next for tomorrow's build.
>
> That would be great.

Done. I also pushed on 0-day, hope I'll have the notification before
tonight.


Thanks,
Miquèl

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