From: Matan Barak Date: Tue, 13 Feb 2018 10:18:34 +0000 (+0200) Subject: IB/uverbs: Add ioctl support for 32bit processes X-Git-Tag: v4.16-rc3~22^2~19 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=9dfb2ff400f6c0a52f63014b5331b64ee7bd5c19;p=linux-block.git 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 Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- 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 };