tty: use __unused annotation instead to silence warnings
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@ -328,15 +328,13 @@ ttyinq_write(struct ttyinq *ti, const void *buf, size_t nbytes, int quote)
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int
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ttyinq_write_nofrag(struct ttyinq *ti, const void *buf, size_t nbytes, int quote)
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{
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#ifdef INVARIANTS
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size_t ret;
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#endif
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size_t ret __unused;
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if (ttyinq_bytesleft(ti) < nbytes)
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return (-1);
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/* We should always be able to write it back. */
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DBGSET(ret, ttyinq_write(ti, buf, nbytes, quote));
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ret = ttyinq_write(ti, buf, nbytes, quote);
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MPASS(ret == nbytes);
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return (0);
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@ -324,15 +324,13 @@ ttyoutq_write(struct ttyoutq *to, const void *buf, size_t nbytes)
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int
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ttyoutq_write_nofrag(struct ttyoutq *to, const void *buf, size_t nbytes)
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{
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#ifdef INVARIANTS
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size_t ret;
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#endif
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size_t ret __unused;
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if (ttyoutq_bytesleft(to) < nbytes)
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return (-1);
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/* We should always be able to write it back. */
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DBGSET(ret, ttyoutq_write(to, buf, nbytes));
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ret = ttyoutq_write(to, buf, nbytes);
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MPASS(ret == nbytes);
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return (0);
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