From: Jiewei Ke Date: Fri, 27 Dec 2019 11:36:13 +0000 (+0800) Subject: RDMA/rxe: Fix error type of mmap_offset X-Git-Tag: v5.4.22~171 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d1d92e97260ffc7d126f4fc0038a59eceebcae2b;p=thirdparty%2Fkernel%2Fstable.git RDMA/rxe: Fix error type of mmap_offset [ Upstream commit 6ca18d8927d468c763571f78c9a7387a69ffa020 ] 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 Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index 5c4b2239129cc..b0a02d4c8b933 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -407,7 +407,7 @@ 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];