From 6ca18d8927d468c763571f78c9a7387a69ffa020 Mon Sep 17 00:00:00 2001
From: Jiewei Ke <kejiewei.cn@gmail.com>
Date: Fri, 27 Dec 2019 19:36:13 +0800
Subject: [PATCH 1/1] RDMA/rxe: Fix error type of mmap_offset
Git-commit: 6ca18d8927d468c763571f78c9a7387a69ffa020
Patch-mainline: v5.6-rc1
References: git-fixes
The type of mmap_offset should be u64 instead of int to match the type of
mminfo.offset. If otherwise, after we create several thousands of CQs, it
will run into overflow issues.
Link: https://lore.kernel.org/r/20191227113613.5020-1-kejiewei.cn@gmail.com
Signed-off-by: Jiewei Ke <kejiewei.cn@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Nicolas Morey <nmorey@suse.com>
---
drivers/infiniband/sw/rxe/rxe_verbs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h
index 95834206c80c..92de39c4a7c1 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.h
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.h
@@ -408,7 +408,7 @@ struct rxe_dev {
struct list_head pending_mmaps;
spinlock_t mmap_offset_lock; /* guard mmap_offset */
- int mmap_offset;
+ u64 mmap_offset;
atomic64_t stats_counters[RXE_NUM_OF_COUNTERS];
--
2.39.1.1.gbe015eda0162