Re: [PATCH 6.15.y 1/2] rtc: Make rtc_time64_to_tm() support dates before 1970

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: 7df4cfef8b351fec3156160bedfc7d6d29de4cce

WARNING: Author mismatch between patch and upstream commit:
Backport author: <u.kleine-koenig@baylibre.com>
Commit author: Alexandre Mergnat<amergnat@baylibre.com>

Note: The patch differs from the upstream commit:
---
1:  7df4cfef8b351 ! 1:  6da0666c8846e rtc: Make rtc_time64_to_tm() support dates before 1970
    @@ Metadata
      ## Commit message ##
         rtc: Make rtc_time64_to_tm() support dates before 1970
     
    +    commit 7df4cfef8b351fec3156160bedfc7d6d29de4cce upstream.
    +
         Conversion of dates before 1970 is still relevant today because these
         dates are reused on some hardwares to store dates bigger than the
         maximal date that is representable in the device's native format.
    @@ Commit message
         Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
         Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-1-2b2f7e3f9349@baylibre.com
         Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
    +    Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
     
      ## drivers/rtc/lib.c ##
     @@ drivers/rtc/lib.c: EXPORT_SYMBOL(rtc_year_days);
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.15.y       |  Success    |  Success   |