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[4/5] i915: alloc_oa_regs(): get rid of pointless access_ok()

Message ID 20200529004145.4111807-4-viro@ZenIV.linux.org.uk (mailing list archive)
State New, archived
Headers show
Series [1/5] i915: switch query_{topology,engine}_info() to copy_to_user() | expand

Commit Message

Al Viro May 29, 2020, 12:41 a.m. UTC 
From: Al Viro <viro@zeniv.linux.org.uk>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/gpu/drm/i915/i915_perf.c | 3 ---
 1 file changed, 3 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 551be589d6f4..a52461016935 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3949,9 +3949,6 @@  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)