5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Steven Rostedt (Google) rostedt@goodmis.org
[ Upstream commit 9388a2aa453321bcf1ad2603959debea9e6ab6d4 ]
I'm working on restructuring the __string* macros so that it doesn't need to recalculate the string twice. That is, it will save it off when processing __string() and the __assign_str() will not need to do the work again as it currently does.
Currently __string_len(item, src, len) doesn't actually use "src", but my changes will require src to be correct as that is where the __assign_str() will get its value from.
The event class nfsd_clid_class has:
__string_len(name, name, clp->cl_name.len)
But the second "name" does not exist and causes my changes to fail to build. That second parameter should be: clp->cl_name.data.
Link: https://lore.kernel.org/linux-trace-kernel/20240222122828.3d8d213c@gandalf.l...
Cc: Neil Brown neilb@suse.de Cc: Olga Kornievskaia kolga@netapp.com Cc: Dai Ngo Dai.Ngo@oracle.com Cc: Tom Talpey tom@talpey.com Cc: stable@vger.kernel.org Fixes: d27b74a8675ca ("NFSD: Use new __string_len C macros for nfsd_clid_class") Acked-by: Chuck Lever chuck.lever@oracle.com Acked-by: Jeff Layton jlayton@kernel.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index 0fc1fa6f28e0b..7e7d0f1705ed3 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -606,7 +606,7 @@ DECLARE_EVENT_CLASS(nfsd_clid_class, __array(unsigned char, addr, sizeof(struct sockaddr_in6)) __field(unsigned long, flavor) __array(unsigned char, verifier, NFS4_VERIFIER_SIZE) - __string_len(name, name, clp->cl_name.len) + __string_len(name, clp->cl_name.data, clp->cl_name.len) ), TP_fast_assign( __entry->cl_boot = clp->cl_clientid.cl_boot;