Kernel

In the RGA3 driver he recently added to the kernel, Sven Püschel resolved an issue where workarounds for limitations of the hardware were applied in cases where they were not needed.

In the etnaviv GPU driver, Lucas Stach contributed two patches to assure that a reset is carried out completely: check all modules for idle after reset and check MMUv2 status after reset.

Oleksij Rempel has resolved the RTL8168h PHY getting stuck due to a defect related to Energy Efficient Ethernet (EEE).

Ahmad Fatoum has silenced an unnecessary warning in the driver for the realtek RTL83xx series of ethernet switches by driving its reset GPIO now via gpiod_set_value_cansleep().

Jonas Rebmann has introduced a new device tree property that allows setting the default color of a multicolor LED. For multicolor LED drivers that initialized the color to "black", this is needed to turn on the LED without a userspace helper.

Philipp Zabel has sent a patch to allow reading the Extended Display Identification Data via HDMI on the FRDM-i.MX8MP development platform.

To allow for runtime bounds checking, recent compilers like GCC-15 support bounds-checking sanitization with the help of the counted_by attribute. The attribute associates a flexible array member with a counter that tells the compiler how many elements it contains. To avoid false-positives, this counter must be properly initialized before accessing the array. Because of this, the kmalloc_flex() allocator introduced early this year will initialize the counter attribute if counted_by is supported by the compiler. Our colleague Sascha Hauer fixed a bug in the PXA DMA driver, which after migration to kmalloc_flex() still relied on a flex array's counter to be zero after allocation.

Finally, Marc Kleine-Budde contributed two cleanups to the spi-fsl-lpspi driver, the driver for the Low-Power Serial Peripheral Interface on the i.MX platform.

OpenSSL

Cryptographic Message Syntax (CMS) is a standard for the cryptographic component used amongst others in S/MIME and PKCS #12. OpenSSL supports CMS-signing data with multiple certificates but could only verify those if all of the signatures were valid. To allow for using CMS in schemes such as certificate roll-over, where of multiple signatures only some needed to be verifiable, our colleague Jan Lübbe contributed a verify_partial-feature that would still allow verification when, for example, one of the signatures is outdated.

Mesa

In Mesa, Lucas Stach removed some dead code and switched some macros for consistency.

OP-TEE

On systems with a device-tree passed to OP-TEE by the bootloader, Sascha Hauer improved boot times by allowing the device-tree's memory region to be cached.

Wider Ecosystem

Again we contributed improvements back to the yocto/openembedded projects.

Beyond contributing to projects in the wider ecosystem, we also maintain open source projects, including barebox, rauc, labgrid, ptxdist and others, with too many changes from us to list them here.