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From: pa@panix.com (Pierre Asselin)
To: pa@panix.com, javierm@redhat.com
Cc: tzimmermann@suse.de, pa@panix.com, linux-kernel@vger.kernel.org,
	jfalempe@redhat.com, hdegoede@redhat.com,
	dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch,
	ardb@kernel.org
Subject: Re: [PATCH] firmware/sysfb: Fix wrong stride when bits-per-pixel is calculated
Date: Thu, 13 Apr 2023 01:13:05 +0000	[thread overview]
Message-ID: <4PxhQn3zK1zcbc@panix1.panix.com> (raw)
In-Reply-To: <9e6fff69b09b36cbdd96499cd0015154.squirrel@mail.panix.com>

After careful reading of the comments in f35cd3fa7729, would this
be an appropriate fix ?  Does it still address all the issues raised
by Thomas ?

(not tested)

diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c
index 82c64cb9f531..9f5299d54732 100644
--- a/drivers/firmware/sysfb_simplefb.c
+++ b/drivers/firmware/sysfb_simplefb.c
@@ -56,10 +56,11 @@ __init bool sysfb_parse_mode(const struct screen_info *si,
 	 * don't specify alpha channels.
 	 */
 	if (si->lfb_depth > 8) {
-		bits_per_pixel = max(max3(si->red_size + si->red_pos,
+		bits_per_pixel = max3(max3(si->red_size + si->red_pos,
 					  si->green_size + si->green_pos,
 					  si->blue_size + si->blue_pos),
-				     si->rsvd_size + si->rsvd_pos);
+				     si->rsvd_size + si->rsvd_pos,
+				     si->lfb_depth);
 	} else {
 		bits_per_pixel = si->lfb_depth;
 	}


  reply	other threads:[~2023-04-13  1:13 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-12 15:02 [PATCH] firmware/sysfb: Fix wrong stride when bits-per-pixel is calculated Javier Martinez Canillas
2023-04-12 16:18 ` Pierre Asselin
2023-04-12 17:31   ` Javier Martinez Canillas
2023-04-12 18:12     ` Pierre Asselin
2023-04-12 18:24       ` Javier Martinez Canillas
2023-04-12 18:51         ` Pierre Asselin
2023-04-12 21:04           ` Javier Martinez Canillas
2023-04-12 21:40             ` Javier Martinez Canillas
2023-04-12 21:53               ` Pierre Asselin
2023-04-12 22:09                 ` Javier Martinez Canillas
2023-04-12 23:13                   ` Pierre Asselin
2023-04-13  1:13                     ` Pierre Asselin [this message]
2023-04-13  1:34                       ` Pierre Asselin
2023-04-17  8:15                         ` Thomas Zimmermann
2023-04-17  8:58                           ` Javier Martinez Canillas
2023-04-17  9:15                             ` Thomas Zimmermann
2023-04-17  9:29                               ` Javier Martinez Canillas
2023-04-13  7:08                       ` Javier Martinez Canillas
2023-04-13 16:24                         ` Pierre Asselin
2023-04-13 16:34                           ` Javier Martinez Canillas
2023-04-13 17:17                         ` Pierre Asselin
2023-04-13 18:04                           ` Javier Martinez Canillas
2023-04-13  6:54                     ` Javier Martinez Canillas

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