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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2018-09-28 15:20:23 -0600 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-10-03 16:01:03 -0600 |
| commit | 914e5d7d4697fb9815fa237a4d42bfb952bf48d6 (patch) | |
| tree | 9a232dc5d8e07c839bb12141be7a3e2c1a217253 /drivers/infiniband/core/uverbs_ioctl.c | |
| parent | RDMA/cma: Introduce and use cma_ib_acquire_dev() (diff) | |
| download | linux-dev-914e5d7d4697fb9815fa237a4d42bfb952bf48d6.tar.xz linux-dev-914e5d7d4697fb9815fa237a4d42bfb952bf48d6.zip | |
RDMA: Fix building with CONFIG_MMU=n
The zap_vma_ptes() is declared but not defined on NOMMU kernels, causing a
link error for the newly added uverbs code:
drivers/infiniband/core/uverbs_main.o: In function `uverbs_user_mmap_disassociate':
uverbs_main.c:(.text+0x114c): undefined reference to `zap_vma_ptes'
drivers/infiniband/core/uverbs_main.o: In function `rdma_umap_open':
uverbs_main.c:(.text+0x53c): undefined reference to `zap_vma_ptes'
Since all user access for all of our drivers depend on remapping pages to
user space disable USER_ACCESS when there is no mmu.
Fixes: 5f9794dc94f5 ("RDMA/ucontext: Add a core API for mmaping driver IO memory")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/uverbs_ioctl.c')
0 files changed, 0 insertions, 0 deletions