This is a note to let you know that I've just added the patch titled

Revert "selftests: firmware: remove use of non-standard diff -Z

to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-testing branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will be merged to the driver-core-next branch sometime soon, after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.

From 13ac7db09c914e4991a08b7ad578267d5cdd9856 Mon Sep 17 00:00:00 2001

From: Luis Chamberlain mcgrof@kernel.org Date: Thu, 7 Feb 2019 11:06:01 -0800 Subject: Revert "selftests: firmware: remove use of non-standard diff -Z option"

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(-)

diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh index 466cf2f91ba0..a4320c4b44dc 100755 --- 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