Linux Kernel Daily: The Merge Window Opens for 7.3
Linus pulled a dense wave of subsystem updates for the 7.3 merge window, spanning DMA engine, PHY, soundwire, DMA mapping, slab, x86 platform drivers, mailbox, I2C, and pin control. The common thread is hardening of probe and error paths alongside a major slab allocator change to support freeing memory in unsafe contexts.
Duration: PT2M42S
Episode overview
This episode is a short developer briefing from Linux Kernel Daily.
It explains recent repository work in plain language.
- Show: Linux Kernel Daily
- Published: 2026-08-25T06:01:01Z
- Audio duration: PT2M42S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good day. It's August 25th, 2026, and this is Linux Kernel Daily.
The merge window for 7.3 is in full swing, and the signal across today's pulls is consistency in cleanup, not just new features. A large share of these changes are fixing probe failure paths, resource leaks, and error handling across drivers that have nothing to do with each other on the surface.
Start with I2C, commit 47096fc. Fixes there address a DMA channel leak on probe failure in the M-X-S driver, clock cleanup on resume failure in Ocores, and node leaks in the demux pin control mux. The platform drivers x86 pull, commit 5b05bb3, describes rollback and remove path fixes "presumably mostly found by AI"…
The second theme is confidential computing groundwork. The DMA mapping pull, commit 2f43193, adds proper tracking of shared DMA state across direct, pool, and swiotlb paths, with new attribute flags for confidential-computing shared memory and changes touching Arm 64, s390, and PowerPC secure guest handling. This is…
The most technically significant single item is the slab allocator update, commit 918e252, which introduces kfree underscore r-c-u underscore no-lock. Contributed by Harry Yoo and detailed in commit…
Wha…