On 10/12/23 03:56, Sean Anderson wrote:
Several SPL functions try to avoid performing initialization twice by
caching devices. This is fine for regular boot, but does not work with
UNIT_TEST, since all devices are torn down after each test. Disable caching
so we don't use stale devices.

Signed-off-by: Sean Anderson <sean...@gmail.com>
---

  common/spl/spl_fat.c | 2 +-
  common/spl/spl_mmc.c | 3 ++-
  2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/spl/spl_fat.c b/common/spl/spl_fat.c
index c6e2526ade1..8bec9cce5ca 100644
--- a/common/spl/spl_fat.c
+++ b/common/spl/spl_fat.c
@@ -24,7 +24,7 @@ static int spl_register_fat_device(struct blk_desc 
*block_dev, int partition)
  {
        int err = 0;

-       if (fat_registered)
+       if (!CONFIG_IS_ENABLED(UNIT_TEST) && fat_registered)

Please, avoid separate code paths depending on CONFIG_UNIT_TESTS.

We shouldn't change normal behavior if unit tests are not running. It is
preferable to let the unit test framework call a new function resetting
fat_registered when needed. This will allow future tests to test all
code paths separately.

Best regards

Heinrich

                return err;

        err = fat_register_device(block_dev, partition);
diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index 67c7ae34a58..a8579e29dee 100644
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -417,7 +417,8 @@ int spl_mmc_load(struct spl_image_info *spl_image,

        /* Perform peripheral init only once for an mmc device */
        mmc_dev = spl_mmc_get_device_index(bootdev->boot_device);
-       if (!mmc || spl_mmc_get_mmc_devnum(mmc) != mmc_dev) {
+       if (CONFIG_IS_ENABLED(UNIT_TEST) || !mmc ||
+           spl_mmc_get_mmc_devnum(mmc) != mmc_dev) {
                err = spl_mmc_find_device(&mmc, bootdev->boot_device);
                if (err)
                        return err;

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