The branch main has been updated by scottl:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=c61dc8542865be1c2f1eb3f85d424141fb5ecd36

commit c61dc8542865be1c2f1eb3f85d424141fb5ecd36
Author:     Scott Long <[email protected]>
AuthorDate: 2022-02-26 19:18:42 +0000
Commit:     Scott Long <[email protected]>
CommitDate: 2022-02-26 19:18:42 +0000

    Fix "set but not used" in the mvs driver.  Remove dead code.
---
 sys/dev/mvs/mvs.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sys/dev/mvs/mvs.c b/sys/dev/mvs/mvs.c
index 80c5e8cfe05f..7ef3e50e25c6 100644
--- a/sys/dev/mvs/mvs.c
+++ b/sys/dev/mvs/mvs.c
@@ -844,7 +844,6 @@ mvs_legacy_intr(device_t dev, int poll)
        struct mvs_slot *slot = &ch->slot[0]; /* PIO is always in slot 0. */
        union ccb *ccb = slot->ccb;
        enum mvs_err_type et = MVS_ERR_NONE;
-       int port;
        u_int length, resid, size;
        uint8_t buf[2];
        uint8_t status, ireason;
@@ -853,7 +852,6 @@ mvs_legacy_intr(device_t dev, int poll)
        status = mvs_getstatus(dev, 1);
        if (slot->state < MVS_SLOT_RUNNING)
            return;
-       port = ccb->ccb_h.target_id & 0x0f;
        /* Wait a bit for late !BUSY status update. */
        if (status & ATA_S_BUSY) {
                if (poll)

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