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Subject[PATCH 5.0 42/46] Revert "selftests: firmware: remove use of non-standard diff -Z option"
Date
5.0-stable review patch.  If anyone has any objections, please let me know.

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

From: Luis Chamberlain <mcgrof@kernel.org>

commit 13ac7db09c914e4991a08b7ad578267d5cdd9856 upstream.

This reverts commit f70b472e937bb659a7b7a14e64f07308e230888c.

This breaks testing on Debian, and this patch was NACKed anyway.
The proper way to address this is a quirk for busybox as that is
where the issue is present.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Fixes: f70b472e937b ("selftests: firmware: remove use of non-standard diff -Z option")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
tools/testing/selftests/firmware/fw_filesystem.sh | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -155,8 +155,11 @@ read_firmwares()
{
for i in $(seq 0 3); do
config_set_read_fw_idx $i
- # Verify the contents match
- if ! diff -q "$FW" $DIR/read_firmware 2>/dev/null ; then
+ # Verify the contents are what we expect.
+ # -Z required for now -- check for yourself, md5sum
+ # on $FW and DIR/read_firmware will yield the same. Even
+ # cmp agrees, so something is off.
+ if ! diff -q -Z "$FW" $DIR/read_firmware 2>/dev/null ; then
echo "request #$i: firmware was not loaded" >&2
exit 1
fi
@@ -168,7 +171,7 @@ read_firmwares_expect_nofile()
for i in $(seq 0 3); do
config_set_read_fw_idx $i
# Ensures contents differ
- if diff -q "$FW" $DIR/read_firmware 2>/dev/null ; then
+ if diff -q -Z "$FW" $DIR/read_firmware 2>/dev/null ; then
echo "request $i: file was not expected to match" >&2
exit 1
fi

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