Re: nvme.c:2012:2: error: call to undeclared function 'memmove'

From: Minsoo Choo <minsoochoo0122_at_proton.me>
Date: Thu, 20 Nov 2025 15:15:16 UTC 
On Thursday, November 20th, 2025 at 12:09 AM, Minsoo Choo <minsoochoo0122@proton.me> wrote:

> On Wednesday, November 19th, 2025 at 11:52 PM, cyric@mm.st cyric@mm.st wrote:
> 
> > Ian FREISLICH wrote:
> > 
> > > My kernel build started failing recently with the following error. I use
> > > a custom kernel config but looking at NOTES, it's not clear that I've
> > > missed an option that would make it compile.
> > > 
> > > In file included from /usr/src/sys/dev/nvme/nvme_util.c:34:
> > > /usr/src/sys/dev/nvme/nvme.h:2012:2: error: call to undeclared function
> > > 'memmove'; ISO C99 and later do not support implicit function
> > > declarations [-Werror,-Wimplicit-function-declaration]
> > > 2012 | memmove(sn, cdata->sn, NVME_SERIAL_NUMBER_LENGTH);
> > > | ^
> > > 1 error generated.
> > > *** Error code 1
> > > 
> > > I've also tried compiling after blowing away usr/obj.
> > 
> > It seems to be the following commit:
> > 
> > https://cgit.freebsd.org/src/commit/?id=8d2a50bb38051fefeb1427fdbfd249f2829310d8
> > 
> > And it was reported:
> > 
> > https://lists.freebsd.org/archives/dev-commits-src-main/2025-November/037599.html
> 
> 
> Thanks for figuring this out. I will see if adding #include <sys/systm.h> solves this issue and try to create pr by tomorrow.

PR created: https://github.com/freebsd/freebsd-src/pull/1893