add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/video/fbdev/dnfb.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 #include <linux/kernel.h>
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 #include <linux/errno.h>
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 #include <linux/string.h>
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@@ -107,7 +108,7 @@
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 static int dnfb_blank(int blank, struct fb_info *info);
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 static void dnfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
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-static struct fb_ops dn_fb_ops = {
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+static const struct fb_ops dn_fb_ops = {
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 	.owner		= THIS_MODULE,
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 	.fb_blank	= dnfb_blank,
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 	.fb_fillrect	= cfb_fillrect,