2019-05-19 15:51:31 +02:00
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2008-07-23 21:31:40 -07:00
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2012-04-18 09:13:51 -05:00
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2008-07-23 21:31:40 -07:00
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2009-07-03 00:39:38 +09:00
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2012-04-18 09:13:51 -05:00
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2008-07-23 21:31:40 -07:00
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2011-07-03 16:17:28 -04:00
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2017-02-02 19:15:33 +01:00
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2008-07-23 21:31:40 -07:00
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2017-08-01 17:20:39 +02:00
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2008-07-23 21:31:40 -07:00
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fbdev: Validate info->screen_{base, buffer} in fb_ops implementations
Push the test for info->screen_base from fb_read() and fb_write() into
the implementations of struct fb_ops.{fb_read,fb_write}. In cases where
the driver operates on info->screen_buffer, test this field instead.
While bothi fields, screen_base and screen_buffer, are stored in the
same location, they refer to different address spaces. For correctness,
we want to test each field in exactly the code that uses it.
v2:
* also test screen_base in pvr2fb (Geert)
* also test screen_buffer in ivtvfb, arcfb, broadsheetfb,
hecubafb, metronomefb and ssd1307fb (Geert)
* give a rational for the change (Geert)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-18-tzimmermann@suse.de
2023-04-28 14:24:50 +02:00
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2008-07-23 21:31:40 -07:00
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fbdev: Validate info->screen_{base, buffer} in fb_ops implementations
Push the test for info->screen_base from fb_read() and fb_write() into
the implementations of struct fb_ops.{fb_read,fb_write}. In cases where
the driver operates on info->screen_buffer, test this field instead.
While bothi fields, screen_base and screen_buffer, are stored in the
same location, they refer to different address spaces. For correctness,
we want to test each field in exactly the code that uses it.
v2:
* also test screen_base in pvr2fb (Geert)
* also test screen_buffer in ivtvfb, arcfb, broadsheetfb,
hecubafb, metronomefb and ssd1307fb (Geert)
* give a rational for the change (Geert)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-18-tzimmermann@suse.de
2023-04-28 14:24:50 +02:00
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2008-07-23 21:31:40 -07:00
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2019-12-03 18:38:50 +02:00
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2008-07-23 21:31:40 -07:00
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2023-09-27 09:26:43 +02:00
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2008-07-23 21:31:40 -07:00
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2023-09-27 09:26:43 +02:00
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2008-07-23 21:31:40 -07:00
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2012-12-21 13:07:39 -08:00
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2008-07-23 21:31:40 -07:00
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2026-04-20 16:44:22 +03:00
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2008-07-23 21:31:40 -07:00
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2026-04-20 16:44:22 +03:00
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2008-07-23 21:31:40 -07:00
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2011-06-09 09:13:32 -07:00
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2016-12-13 13:50:52 +05:30
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2008-07-23 21:31:40 -07:00
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2013-09-19 18:35:55 -07:00
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2008-07-23 21:31:40 -07:00
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2023-03-19 00:53:48 +01:00
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2008-07-23 21:31:40 -07:00
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2024-10-07 18:35:17 +02:00
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2008-07-23 21:31:40 -07:00
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2013-09-29 13:32:06 +08:00
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2008-07-23 21:31:40 -07:00
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