Re: [PATCH] NFSD: Replace all non-returning strlcpy with strscpy

From: Azeem Shaikh
Date: Fri May 12 2023 - 10:31:22 EST


Thanks Chuck and Kees for the review.

> > Actually netid should use the __string() and __assign_str()
> > macros rather than open-coding a string copy, I think.

Do you mean something like this?

diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 4183819ea082..72a906a053dc 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -1365,19 +1365,19 @@ TRACE_EVENT(nfsd_cb_setup,
__field(u32, cl_id)
__field(unsigned long, authflavor)
__sockaddr(addr, clp->cl_cb_conn.cb_addrlen)
- __array(unsigned char, netid, 8)
+ __string(netid, netid)
),
TP_fast_assign(
__entry->cl_boot = clp->cl_clientid.cl_boot;
__entry->cl_id = clp->cl_clientid.cl_id;
- strlcpy(__entry->netid, netid, sizeof(__entry->netid));
+ __assign_str(netid, netid);
__entry->authflavor = authflavor;
__assign_sockaddr(addr, &clp->cl_cb_conn.cb_addr,
clp->cl_cb_conn.cb_addrlen)
),
TP_printk("addr=%pISpc client %08x:%08x proto=%s flavor=%s",
__get_sockaddr(addr), __entry->cl_boot, __entry->cl_id,
- __entry->netid, show_nfsd_authflavor(__entry->authflavor))
+ __get_str(netid), show_nfsd_authflavor(__entry->authflavor))
);

> > Fixes: 3c92fba557c6 ("NFSD: Enhance the nfsd_cb_setup tracepoint")

Ack.