Rephrasing the error and warning messages to be more meaningful and
clear.

Signed-off-by: Love Kumar <love.kumar@amd.com>

Use an 'r' string to avoid a warning:

  test/py/tests/test_spi.py:698: DeprecationWarning: invalid escape
     sequence '\s'

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Love Kumar <love.kumar@amd.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Create a new disk for use with tests, which contains the new 'testapp'
EFI app specifically intended for testing the EFI loader.

Attach it to the USB device, since most testing is currently done with
mmc.

Initially this image will be used to test the EFI bootmeth.

Fix a stale comment in prep_mmc_bootdev() while we are here.

For now this uses sudo and a compressed fallback file, like all the
other bootstd tests. Once this series is in, the patch which moves
this to use user-space tools will be cleaned up and re-submitted.

Signed-off-by: Simon Glass <sjg@chromium.org>

The tests test_usb_ext4load_ext4write, test_usb_ext2load and
test_usb_load depend on the command ext4write being present not just
the feature of being able to write to an ext4 file system. So update
their dependencies to include the ext4write command itself. This will
prevent spurious test failures when running the USB tests against USB
storage with an ext2/ext4 partition but no ext4write command available.

Fixes: 1c5b6edad381 ("test/py: usb: Add tests for USB device")
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Reviewed-by: Love Kumar <love.kumar@amd.com>

When test_usb_load finds multiple partitions of the same type then
it will cause a test failure. The call to write the test file will
write a different test file to each partition but only return the
name and size of the last one written. So the test then fails to
load the test file from the first partition as it uses the name of
a file on a different partition.

Refactor the code so that only one test file is written at a time
and is written to only the partition being tested at that time. This
allows the correct file name to always be available to the code that
runs the load command. This reduces the number of files written and
also the number of calls to crc32 needed.

Fixes: 1c5b6edad381 ("test/py: usb: Add tests for USB device")
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Reviewed-by: Love Kumar <love.kumar@amd.com>

The mkimage call is done twice. Remove the duplicate.

Signed-off-by: Simon Glass <sjg@chromium.org>

Heinrich Schuchardt <heinrich.schuchardt@canonical.com> says:

With this series opendir, readdir, closedir are implemented for ext4.
These functions are needed for the UEFI sub-system to interact with
the ext4 file system.

To reduce code growth the functions are reused to implement the ls
command for ext4.

A memory leak in ext4fs_exists is resolved.

ext4fs_iterate_dir is simplified by removing a redundant pointer copy.

Link: https://lore.kernel.org/r/20241026064048.370062-1-heinrich.schuchardt@canonical.com

Now that opendir, readir, closedir are implemented for ext4 we can use
fs_ls_generic() for implementing the ls command.

Adjust the unit tests:

* fs_ls_generic() produces more spaces between file size and name.
* The ext4 specific message "** Can not find directory. **\n" is not
  written anymore.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Update spi negative test case to prevent SF command
from overwriting relocation memory area.

Signed-off-by: Padmarao Begari <padmarao.begari@amd.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Love Kumar <love.kumar@amd.com>

To conform with other messages capitalize the first letter:
%s/enter description/Enter description/g

Adjust the unit tests accordingly.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>