linux-kernel - Re: Warning message from 'make nsdeps' when namespace is lower cases

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Date:   Tue, 29 Oct 2019 14:38:36 +0100 (CET)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
cc:     Matthias Maennich <maennich@...gle.com>,
        Jessica Yu <jeyu@...nel.org>,
        Coccinelle <cocci@...teme.lip6.fr>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Warning message from 'make nsdeps' when namespace is lower
 cases



On Tue, 29 Oct 2019, Masahiro Yamada wrote:

> Hi.
>
> When I was playing with 'make nsdeps',
> I saw a new warning.
>
> If I rename USB_STORAGE to usb_storage,
> I see 'warning: line 15: should usb_storage be a metavariable?'
> Why? I think it comes from spatch.

Yes, it would come from spatch.

> It should be technically OK to use either upper or lower cases
> for the namespace name.

What is normally wanted?  Uppercase or lowercase?

julia

>
> Just apply the following, and try 'make nsdeps'.
>
>
> diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
> index 46635fa4a340..6f817d65c26b 100644
> --- a/drivers/usb/storage/Makefile
> +++ b/drivers/usb/storage/Makefile
> @@ -8,7 +8,7 @@
>
>  ccflags-y := -I $(srctree)/drivers/scsi
>
> -ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=USB_STORAGE
> +ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=usb_storage
>
>  obj-$(CONFIG_USB_UAS)          += uas.o
>  obj-$(CONFIG_USB_STORAGE)      += usb-storage.o
>
>
>
>
>
>
>
>
>
>
> --
> Best Regards
> Masahiro Yamada
>