regression on 6.1.129-rc with perf

[Max Krummenacher <max.oss.09@gmail.com>]

Our CI built linux-stable-rc.git queue/6.1 at commit eef4a8a45ba1
("btrfs: output the reason for open_ctree() failure").
(built for arm and arm64, albeit I don't think it matters.)

Building perf produced 2 build errors which I wanted to report
even before the RC1 is out.

| ...tools/perf/util/namespaces.c:247:27: error: invalid type argument of '->' (have 'int')
|   247 |         RC_CHK_ACCESS(nsi)->in_pidns = true;  
|       |                           ^~

introduced by commit 93520bacf784 ("perf namespaces: Introduce
nsinfo__set_in_pidns()"). The RC_CK_ACCSS macro was introduced in 6.4.
Removing the macro made this go away ( nsi->in_pidns = true; ).


Second perf build error:
| ld: ...tools/perf/util/machine.c:1176: undefined reference to `kallsyms__get_symbol_start'

Introduced by commits:
710c2e913aa9 perf machine: Don't ignore _etext when not a text symbol
69a87a32f5cd perf machine: Include data symbols in the kernel map

These two use the function kallsyms__get_symbol_start added with:
f9dd531c5b82 perf symbols: Add kallsyms__get_symbol_start()
So f9dd531c5b82 would additionally be needed.


The kernel itself built fine, due to the perf error we don't have runtime
testresults.

Best regards
Max