linux-kernel - [PATCH 4.19 172/205] scripts/spdxcheck.py: make python3 compliant

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Date:   Mon, 19 Nov 2018 17:27:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 4.19 172/205] scripts/spdxcheck.py: make python3 compliant

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

commit 6f4d29df66acd49303a99025046b85cabe7aa17a upstream.

Without this change the following happens when using Python3 (3.6.6):

	$ echo "GPL-2.0" | python3 scripts/spdxcheck.py -
	FAIL: 'str' object has no attribute 'decode'
	Traceback (most recent call last):
	  File "scripts/spdxcheck.py", line 253, in <module>
	    parser.parse_lines(sys.stdin, args.maxlines, '-')
	  File "scripts/spdxcheck.py", line 171, in parse_lines
	    line = line.decode(locale.getpreferredencoding(False), errors='ignore')
	AttributeError: 'str' object has no attribute 'decode'

So as the line is already a string, there is no need to decode it and
the line can be dropped.

/usr/bin/python on Arch is Python 3.  So this would indeed be worth
going into 4.19.

Link: http://lkml.kernel.org/r/20181023070802.22558-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Joe Perches <joe@...ches.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: <stable@...r.kernel.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 scripts/spdxcheck.py |    1 -
 1 file changed, 1 deletion(-)

--- a/scripts/spdxcheck.py
+++ b/scripts/spdxcheck.py
@@ -168,7 +168,6 @@ class id_parser(object):
         self.curline = 0
         try:
             for line in fd:
-                line = line.decode(locale.getpreferredencoding(False), errors='ignore')
                 self.curline += 1
                 if self.curline > maxlines:
                     break