GCC 15 and stable kernels

Hi Greg,

I've built the four stable kernels that were released on 25 April. I found that to successfully build with GCC-15, each of them required backports of one or both of two upstream commits. Those commits are:

Title Commit Author nonstring 9d7a0577c9db35c4cc52db90bc415ea248446472 Linus gnu11 b3bee1e7c3f2b1b77182302c7b2131c804175870 Alexey Dobriyan

6.14.4 and 6.12.25 required only nonstring. 6.6.87 required only gnu11, 6.1.35 required both.

Additionally, chasing down why my new Bluetooth mouse doesn't work, I also had cause to build 5.15.180 and found that it needed gnull.

I have TO dash out now, but I could send you a zip archive of the patches later today, if that would help.

Chris