octeontx2-af: Fix mbox INTR handler when num VFs > 64

[ Upstream commit 0fdba88a211508984eb5df62008c29688692b134 ]

When number of RVU VFs > 64, the vfs value passed to "rvu_queue_work"
function is incorrect. Due to which mbox workqueue entries for
VFs 0 to 63 never gets added to workqueue.

Fixes: 9bdc47a ("octeontx2-af: Mbox communication support btw AF and it's VFs")
Signed-off-by: Geetha sowjanya <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
(cherry picked from commit da3b90f71b1e313cc4ec93c3805facf4a95e6bcb)
Signed-off-by: Alok Tiwari <[email protected]>

Author: Geetha sowjanya

drivers/net/ethernet/marvell/octeontx2/af/rvu.c

@@ -2718,7 +2718,7 @@ static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq)
 		rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(1), intr);
 
 		rvu_queue_work(&rvu->afvf_wq_info, 64, vfs, intr);
-		vfs -= 64;
+		vfs = 64;
 	}
 
 	intr = rvupf_read64(rvu, RVU_PF_VFPF_MBOX_INTX(0));