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ksmbd: quiet mdssvc RPC log spam

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macOS routinely probes the mdssvc RPC pipe to check for Spotlight
search support. __rpc_method() already falls through to returning 0
(unsupported) for it via the default case, but that path also logs
"Unsupported RPC: mdssvc" via pr_err on every single probe -- which
happens often enough during normal macOS browsing/backup activity to
spam the kernel log. Add an explicit case that returns the same value
without the log line; behavior is unchanged, this only removes noise
for an expected, routine client behavior.

Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Gael Blivet <gael.blivet@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Gael Blivet 2026-07-07 11:55:05 +02:00 committed by Namjae Jeon
parent 9870bbb55a
commit 92db30225e
1 changed files with 3 additions and 0 deletions
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3
fs/smb/server/mgmt/user_session.c
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@ -308,6 +308,9 @@ static int __rpc_method(char *rpc_name)
if (!strcmp(rpc_name, "\\lsarpc") || !strcmp(rpc_name, "lsarpc"))
return KSMBD_RPC_LSARPC_METHOD_INVOKE;
if (!strcmp(rpc_name, "\\mdssvc") || !strcmp(rpc_name, "mdssvc"))
return 0; /* mdssvc unsupported: quiet, expected macOS probe */
pr_err("Unsupported RPC: %s\n", rpc_name);
return 0;
}