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IBiser: Fix wrong mask when sizeof (dma_addr_t) > sizeof (unsigned long)

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The code that prepares the SG associated with SCSI command for FMR was
buggy for systems with DMA addresses that don't fit in unsigned long,
e.g under the 32-bit based XenServer dom0 sizeof(dma_addr_t) is 8.

Fix that by casting to unsigned long long a masking constant used by
the code. This resolves a crash in iser_sg_to_page_vec on this system.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Or Gerlitz 2011-08-01 21:12:09 +00:00 committed by Roland Dreier
parent 322a8b0340
commit 0ace64b85e
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/ulp/iser/iscsi_iser.h
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@ -89,7 +89,7 @@
} while (0)
#define SHIFT_4K 12
#define SIZE_4K (1UL << SHIFT_4K)
#define SIZE_4K (1ULL << SHIFT_4K)
#define MASK_4K (~(SIZE_4K-1))
/* support up to 512KB in one RDMA */