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Message-ID: <e5g3qkwvc3sjfpxcdvn43fiwbxthpblqgg2getxpbkd6g4lp5k@pgfm75tsg7wz>
Date: Mon, 8 Jan 2024 08:07:49 -0600
From: Lucas De Marchi <lucas.demarchi@...el.com>
To: Dan Carpenter <dan.carpenter@...aro.org>
CC: Daniel Vetter <daniel@...ll.ch>, <kernel-janitors@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Maxime Ripard <mripard@...nel.org>,
<dri-devel@...ts.freedesktop.org>, Thomas Zimmermann <tzimmermann@...e.de>,
Rodrigo Vivi <rodrigo.vivi@...el.com>, David Airlie <airlied@...il.com>,
<intel-xe@...ts.freedesktop.org>
Subject: Re: [PATCH] drm/xe: clean up type of GUC_HXG_MSG_0_ORIGIN
On Mon, Jan 08, 2024 at 12:05:57PM +0300, Dan Carpenter wrote:
>The GUC_HXG_MSG_0_ORIGIN definition should be unsigned. Currently it is
>defined as INT_MIN. This doesn't cause a problem currently but it's
>still worth cleaning up.
>
>Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
it seems there are a few more places to change to follow what was done
in commit 962bd34bb457 ("drm/i915/uc: Fix undefined behavior due to shift overflowing the constant").
+Michal
Could we eventually share these abi includes with i915 so we don't
keep fixing the same thing in 2 places?
Lucas De Marchi
>---
> drivers/gpu/drm/xe/abi/guc_messages_abi.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/xe/abi/guc_messages_abi.h b/drivers/gpu/drm/xe/abi/guc_messages_abi.h
>index 3d199016cf88..c04606872e48 100644
>--- a/drivers/gpu/drm/xe/abi/guc_messages_abi.h
>+++ b/drivers/gpu/drm/xe/abi/guc_messages_abi.h
>@@ -40,7 +40,7 @@
> */
>
> #define GUC_HXG_MSG_MIN_LEN 1u
>-#define GUC_HXG_MSG_0_ORIGIN (0x1 << 31)
>+#define GUC_HXG_MSG_0_ORIGIN (0x1U << 31)
> #define GUC_HXG_ORIGIN_HOST 0u
> #define GUC_HXG_ORIGIN_GUC 1u
> #define GUC_HXG_MSG_0_TYPE (0x7 << 28)
>--
>2.42.0
>
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