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author | Matan Barak <matanb@mellanox.com> | 2018-02-13 12:18:34 +0200 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-02-15 14:59:46 -0700 |
commit | 9dfb2ff400f6c0a52f63014b5331b64ee7bd5c19 (patch) | |
tree | 50c4ee7027a4d52b7ce579e66e41f5fb965a36d6 /drivers/infiniband/core | |
parent | 5d2beb576d32ef2cd047db8914e3602e99a12763 (diff) | |
download | linux-9dfb2ff400f6c0a52f63014b5331b64ee7bd5c19.tar.bz2 |
IB/uverbs: Add ioctl support for 32bit processes
32 bit processes running on a 64 bit kernel call compat_ioctl so that
implementations can revise any structure layout issues. Point compat_ioctl
at our normal ioctl because:
- All our structures are designed to be the same on 32 and 64 bit, ie we
use __aligned_u64 when required and are careful to manage padding.
- Any pointers are stored in u64's and userspace is expected
to prepare them properly.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r-- | drivers/infiniband/core/uverbs_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 395a3b091229..cd72555ad457 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -942,6 +942,7 @@ static const struct file_operations uverbs_fops = { .llseek = no_llseek, #if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS) .unlocked_ioctl = ib_uverbs_ioctl, + .compat_ioctl = ib_uverbs_ioctl, #endif }; @@ -954,6 +955,7 @@ static const struct file_operations uverbs_mmap_fops = { .llseek = no_llseek, #if IS_ENABLED(CONFIG_INFINIBAND_EXP_USER_ACCESS) .unlocked_ioctl = ib_uverbs_ioctl, + .compat_ioctl = ib_uverbs_ioctl, #endif }; |