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[v3,1/2] migration-5.2: document BB_CURRENT_MC default value change

Message ID 20250207-migration-5-2-updates-v3-1-9571efbb1cd0@bootlin.com
State Under Review
Headers show
Series migration-5.2: Add entries for virtual provider and multiconfig changes | expand

Commit Message

Antonin Godard Feb. 7, 2025, 8:27 a.m. UTC
After commit 0fa0d8d764bb ("cooker/cache: Drop mc 'default' string
value") in Bitbake, the default value of BB_CURRENT_MC was changed from
"default" to an empty string. Document it.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
---
 documentation/migration-guides/migration-5.2.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)

Comments

Quentin Schulz Feb. 7, 2025, 8:48 a.m. UTC | #1
Hi Antonin,

On 2/7/25 9:27 AM, Antonin Godard wrote:
> After commit 0fa0d8d764bb ("cooker/cache: Drop mc 'default' string
> value") in Bitbake, the default value of BB_CURRENT_MC was changed from
> "default" to an empty string. Document it.
> 
> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
> Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>

Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>

Thanks!
Quentin
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Patch

diff --git a/documentation/migration-guides/migration-5.2.rst b/documentation/migration-guides/migration-5.2.rst
index e9de6910e..a60e3e9a8 100644
--- a/documentation/migration-guides/migration-5.2.rst
+++ b/documentation/migration-guides/migration-5.2.rst
@@ -94,6 +94,17 @@  systemd changes
    not for socket files).
    Now all service files must be explicitly added to :term:`FILES`.
 
+Multiconfig changes
+~~~~~~~~~~~~~~~~~~~
+
+The value of ``BB_CURRENT_MC`` was changed from ``default`` to an empty string
+for the default multiconfig configuration to avoid needing to map the values
+within BitBake. This was already not happening in some cases so this fixes
+some obscure bugs.
+
+Any logic based on ``BB_CURRENT_MC`` equalling to ``default`` by default should
+be changed to be equal to an empty string.
+
 Recipe changes
 ~~~~~~~~~~~~~~