diff mbox series

kbuild: detect missing "WITH Linux-syscall-note" for uapi headers

Message ID 20190725080513.4071-1-yamada.masahiro@socionext.com
State Accepted
Commit 622445541b751ce70a952b8486ce4512a792c0a2
Headers show
Series kbuild: detect missing "WITH Linux-syscall-note" for uapi headers | expand

Commit Message

Masahiro Yamada July 25, 2019, 8:05 a.m. UTC
UAPI headers licensed under GPL are supposed to have exception
"WITH Linux-syscall-note" so that they can be included into non-GPL
user space application code.

Unfortunately, people often miss to add it. Break 'make headers'
when any of exported headers lacks the exception note so that the
0-day bot can easily catch it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

This patch depends on the following:

https://lore.kernel.org/patchwork/patch/1105289/

I will turn on the error after all headers are fixed.


 scripts/headers_install.sh | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
2.17.1

Comments

Greg KH July 25, 2019, 11:12 a.m. UTC | #1
On Thu, Jul 25, 2019 at 05:05:13PM +0900, Masahiro Yamada wrote:
> UAPI headers licensed under GPL are supposed to have exception

> "WITH Linux-syscall-note" so that they can be included into non-GPL

> user space application code.

> 

> Unfortunately, people often miss to add it. Break 'make headers'

> when any of exported headers lacks the exception note so that the

> 0-day bot can easily catch it.

> 

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---

> 

> This patch depends on the following:

> 

> https://lore.kernel.org/patchwork/patch/1105289/

> 

> I will turn on the error after all headers are fixed.


I've taken the dependancy here in the spdx tree and will send it to
Linus for 5.3-rc2.  I can also take this now through that tree, or you
can add it to yours afterward, which ever is easier for you.

thanks,

greg k-h
Masahiro Yamada July 25, 2019, 11:17 a.m. UTC | #2
On Thu, Jul 25, 2019 at 8:13 PM Greg KH <gregkh@linuxfoundation.org> wrote:
>

> On Thu, Jul 25, 2019 at 05:05:13PM +0900, Masahiro Yamada wrote:

> > UAPI headers licensed under GPL are supposed to have exception

> > "WITH Linux-syscall-note" so that they can be included into non-GPL

> > user space application code.

> >

> > Unfortunately, people often miss to add it. Break 'make headers'

> > when any of exported headers lacks the exception note so that the

> > 0-day bot can easily catch it.

> >

> > Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> > ---

> >

> > This patch depends on the following:

> >

> > https://lore.kernel.org/patchwork/patch/1105289/

> >

> > I will turn on the error after all headers are fixed.

>

> I've taken the dependancy here in the spdx tree and will send it to

> Linus for 5.3-rc2.


Thanks!

>  I can also take this now through that tree, or you

> can add it to yours afterward, which ever is easier for you.


I will create a branch on top 5.3-rc2
and queue this patch by myself.

Thank you.


-- 
Best Regards
Masahiro Yamada
diff mbox series

Patch

diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
index 47f6f3ea0771..bbaf29386995 100755
--- a/scripts/headers_install.sh
+++ b/scripts/headers_install.sh
@@ -23,6 +23,12 @@  TMPFILE=$OUTFILE.tmp
 
 trap 'rm -f $OUTFILE $TMPFILE' EXIT
 
+# SPDX-License-Identifier with GPL variants must have "WITH Linux-syscall-note"
+if [ -n "$(sed -n -e "/SPDX-License-Identifier:.*GPL-/{/WITH Linux-syscall-note/!p}" $INFILE)" ]; then
+	echo "error: $INFILE: missing \"WITH Linux-syscall-note\" for SPDX-License-Identifier" >&2
+	exit 1
+fi
+
 sed -E -e '
 	s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g
 	s/__attribute_const__([[:space:]]|$)/\1/g