Pull 9p updates from Dominique Martinet:
- fix handling of bogus (negative/too long) replies
- fix crash on mkdir with ACLs (... looks like nobody is using ACLs
with semi-recent kernels...)
- ipv6 support for trans=tcp
- minor concurrency fix to make syzbot happy
- minor cleanup
* tag '9p-for-6.15-rc1' of https://github.com/martinetd/linux:
docs: fs/9p: Add missing "not" in cache documentation
9p: Use hashtable.h for hash_errmap
Documentation/fs/9p: fix broken link
9p/trans_fd: mark concurrent read and writes to p9_conn->err
9p/net: return error on bogus (longer than requested) replies
9p/net: fix improper handling of bogus negative read/write replies
fs/9p: fix NULL pointer dereference on mkdir
net/9p/fd: support ipv6 for trans=tcp
bdafff62ae