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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 16:04:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-10 16:04:27 -0700
commit3a8557e1aed0043d526f304a1f500108c8976b78 (patch)
treedd9a03cdb1d6a0d05163d2f929561fb746fc0ae6 /drivers/gpu/drm/i915/i915_perf.c
parentMerge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff)
parenti915:get_engines(): get rid of pointless access_ok() (diff)
downloadlinux-dev-3a8557e1aed0043d526f304a1f500108c8976b78.tar.xz
linux-dev-3a8557e1aed0043d526f304a1f500108c8976b78.zip
Merge branch 'uaccess.i915' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull i915 uaccess updates from Al Viro: "Low-hanging fruit in i915; there are several trickier followups, but that'll wait for the next cycle" * 'uaccess.i915' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: i915:get_engines(): get rid of pointless access_ok() i915: alloc_oa_regs(): get rid of pointless access_ok() i915 compat ioctl(): just use drm_ioctl_kernel() i915: switch copy_perf_config_registers_or_number() to unsafe_put_user() i915: switch query_{topology,engine}_info() to copy_to_user()
Diffstat (limited to 'drivers/gpu/drm/i915/i915_perf.c')
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 665bb076e84d..25329b7600c9 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3896,9 +3896,6 @@ static struct i915_oa_reg *alloc_oa_regs(struct i915_perf *perf,
if (!n_regs)
return NULL;
- if (!access_ok(regs, n_regs * sizeof(u32) * 2))
- return ERR_PTR(-EFAULT);
-
/* No is_valid function means we're not allowing any register to be programmed. */
GEM_BUG_ON(!is_valid);
if (!is_valid)