From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Tue, 19 Apr 2016 10:22:21 -0600
Subject: [U-Boot] [PATCH v2 1/3] tests: py: dfu: Add global variables to
 store dfu alt numbers for test and dummy files
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 <1461081084-16649-1-git-send-email-l.majewski@samsung.com>
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On 04/19/2016 09:51 AM, Lukasz Majewski wrote:
> This patch replaces hardcoded (i.e. 0 and 1) values passed to dfu_{read|write}
> with global variables.

Why do these variables need to be global? They're only used inside 
test_dfu(). They should be local to that function.