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

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Date:   Tue, 29 Oct 2019 22:12:32 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Matthias Maennich <maennich@...gle.com>,
        Jessica Yu <jeyu@...nel.org>,
        Julia Lawall <Julia.Lawall@...6.fr>
Cc:     Coccinelle <cocci@...teme.lip6.fr>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Warning message from 'make nsdeps' when namespace is lower cases

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


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