diff for duplicates of <20180603144225.839044928@twibright.com>

diff --git a/a/1.txt b/N1/1.txt
index 7ee3d38..232a25f 100644
--- a/a/1.txt
+++ b/N1/1.txt
@@ -24,7 +24,8 @@ Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
  1 file changed, 34 insertions(+), 11 deletions(-)
 
 Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
-=================================--- linux-4.17-rc7.orig/drivers/video/fbdev/udlfb.c	2018-05-31 14:51:43.000000000 +0200
+===================================================================
+--- linux-4.17-rc7.orig/drivers/video/fbdev/udlfb.c	2018-05-31 14:51:43.000000000 +0200
 +++ linux-4.17-rc7/drivers/video/fbdev/udlfb.c	2018-05-31 14:51:43.000000000 +0200
 @@ -431,7 +431,9 @@ static void dlfb_compress_hline(
  	const uint16_t *const pixel_end,
@@ -42,7 +43,7 @@ Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
  		const uint16_t *cmd_pixel_start, *cmd_pixel_end = NULL;
  
 +		if (back_buffer_offset &&
-+		    *pixel = *(u16 *)((u8 *)pixel + back_buffer_offset)) {
++		    *pixel == *(u16 *)((u8 *)pixel + back_buffer_offset)) {
 +			pixel++;
 +			dev_addr += BPP;
 +			(*ident_ptr)++;
@@ -59,7 +60,7 @@ Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
 +		if (back_buffer_offset) {
 +			/* note: the framebuffer may change under us, so we must test for underflow */
 +			while (cmd_pixel_end - 1 > pixel &&
-+			       *(cmd_pixel_end - 1) = *(u16 *)((u8 *)(cmd_pixel_end - 1) + back_buffer_offset))
++			       *(cmd_pixel_end - 1) == *(u16 *)((u8 *)(cmd_pixel_end - 1) + back_buffer_offset))
 +				cmd_pixel_end--;
 +		}
 +
@@ -77,14 +78,14 @@ Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
  			pixel++;
  
  			if (unlikely((pixel < cmd_pixel_end) &&
--				     (*pixel = *repeating_pixel))) {
-+				     (*pixel = pixel_value))) {
+-				     (*pixel == *repeating_pixel))) {
++				     (*pixel == pixel_value))) {
  				/* go back and fill in raw pixel count */
  				*raw_pixels_count_byte = ((repeating_pixel -
  						raw_pixel_start) + 1) & 0xFF;
  
 -				while ((pixel < cmd_pixel_end)
--				       && (*pixel = *repeating_pixel)) {
+-				       && (*pixel == *repeating_pixel)) {
 -					pixel++;
 -				}
 +				do {
@@ -92,7 +93,7 @@ Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
 +						*(u16 *)((u8 *)pixel + back_buffer_offset) = pixel_value;
 + 					pixel++;
 +				} while ((pixel < cmd_pixel_end) &&
-+					 (*pixel = pixel_value));
++					 (*pixel == pixel_value));
  
  				/* immediately after raw data is repeat byte */
  				*cmd++ = ((pixel - repeating_pixel) - 1) & 0xFF;
@@ -132,3 +133,8 @@ Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c
  
  		if (cmd >= cmd_end) {
  			int len = cmd - (u8 *) urb->transfer_buffer;
+
+_______________________________________________
+dri-devel mailing list
+dri-devel@lists.freedesktop.org
+https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/a/content_digest b/N1/content_digest
index b90bf9c..dd650b1 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -1,7 +1,7 @@
  "ref\020180603144053.875668929@twibright.com\0"
  "From\0Mikulas Patocka <mpatocka@redhat.com>\0"
  "Subject\0[PATCH 19/21] udlfb: optimization - test the backing buffer\0"
- "Date\0Sun, 03 Jun 2018 14:41:12 +0000\0"
+ "Date\0Sun, 03 Jun 2018 16:41:12 +0200\0"
  "To\0Mikulas Patocka <mpatocka@redhat.com>"
   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
   Dave Airlie <airlied@redhat.com>
@@ -10,6 +10,7 @@
  "Cc\0linux-fbdev@vger.kernel.org"
  " dri-devel@lists.freedesktop.org\0"
  "\00:1\0"
+ "fn\0udl-test-backing-buffer.patch\0"
  "b\0"
  "Currently, the udlfb driver only tests for identical bytes at the\n"
  "beginning or at the end of a page and renders anything between the first\n"
@@ -37,7 +38,8 @@
  " 1 file changed, 34 insertions(+), 11 deletions(-)\n"
  "\n"
  "Index: linux-4.17-rc7/drivers/video/fbdev/udlfb.c\n"
- "=================================--- linux-4.17-rc7.orig/drivers/video/fbdev/udlfb.c\t2018-05-31 14:51:43.000000000 +0200\n"
+ "===================================================================\n"
+ "--- linux-4.17-rc7.orig/drivers/video/fbdev/udlfb.c\t2018-05-31 14:51:43.000000000 +0200\n"
  "+++ linux-4.17-rc7/drivers/video/fbdev/udlfb.c\t2018-05-31 14:51:43.000000000 +0200\n"
  "@@ -431,7 +431,9 @@ static void dlfb_compress_hline(\n"
  " \tconst uint16_t *const pixel_end,\n"
@@ -55,7 +57,7 @@
  " \t\tconst uint16_t *cmd_pixel_start, *cmd_pixel_end = NULL;\n"
  " \n"
  "+\t\tif (back_buffer_offset &&\n"
- "+\t\t    *pixel = *(u16 *)((u8 *)pixel + back_buffer_offset)) {\n"
+ "+\t\t    *pixel == *(u16 *)((u8 *)pixel + back_buffer_offset)) {\n"
  "+\t\t\tpixel++;\n"
  "+\t\t\tdev_addr += BPP;\n"
  "+\t\t\t(*ident_ptr)++;\n"
@@ -72,7 +74,7 @@
  "+\t\tif (back_buffer_offset) {\n"
  "+\t\t\t/* note: the framebuffer may change under us, so we must test for underflow */\n"
  "+\t\t\twhile (cmd_pixel_end - 1 > pixel &&\n"
- "+\t\t\t       *(cmd_pixel_end - 1) = *(u16 *)((u8 *)(cmd_pixel_end - 1) + back_buffer_offset))\n"
+ "+\t\t\t       *(cmd_pixel_end - 1) == *(u16 *)((u8 *)(cmd_pixel_end - 1) + back_buffer_offset))\n"
  "+\t\t\t\tcmd_pixel_end--;\n"
  "+\t\t}\n"
  "+\n"
@@ -90,14 +92,14 @@
  " \t\t\tpixel++;\n"
  " \n"
  " \t\t\tif (unlikely((pixel < cmd_pixel_end) &&\n"
- "-\t\t\t\t     (*pixel = *repeating_pixel))) {\n"
- "+\t\t\t\t     (*pixel = pixel_value))) {\n"
+ "-\t\t\t\t     (*pixel == *repeating_pixel))) {\n"
+ "+\t\t\t\t     (*pixel == pixel_value))) {\n"
  " \t\t\t\t/* go back and fill in raw pixel count */\n"
  " \t\t\t\t*raw_pixels_count_byte = ((repeating_pixel -\n"
  " \t\t\t\t\t\traw_pixel_start) + 1) & 0xFF;\n"
  " \n"
  "-\t\t\t\twhile ((pixel < cmd_pixel_end)\n"
- "-\t\t\t\t       && (*pixel = *repeating_pixel)) {\n"
+ "-\t\t\t\t       && (*pixel == *repeating_pixel)) {\n"
  "-\t\t\t\t\tpixel++;\n"
  "-\t\t\t\t}\n"
  "+\t\t\t\tdo {\n"
@@ -105,7 +107,7 @@
  "+\t\t\t\t\t\t*(u16 *)((u8 *)pixel + back_buffer_offset) = pixel_value;\n"
  "+ \t\t\t\t\tpixel++;\n"
  "+\t\t\t\t} while ((pixel < cmd_pixel_end) &&\n"
- "+\t\t\t\t\t (*pixel = pixel_value));\n"
+ "+\t\t\t\t\t (*pixel == pixel_value));\n"
  " \n"
  " \t\t\t\t/* immediately after raw data is repeat byte */\n"
  " \t\t\t\t*cmd++ = ((pixel - repeating_pixel) - 1) & 0xFF;\n"
@@ -144,6 +146,11 @@
  "+\t\t\tident_ptr);\n"
  " \n"
  " \t\tif (cmd >= cmd_end) {\n"
- " \t\t\tint len = cmd - (u8 *) urb->transfer_buffer;"
+ " \t\t\tint len = cmd - (u8 *) urb->transfer_buffer;\n"
+ "\n"
+ "_______________________________________________\n"
+ "dri-devel mailing list\n"
+ "dri-devel@lists.freedesktop.org\n"
+ https://lists.freedesktop.org/mailman/listinfo/dri-devel
 
-5ec4a31139ff76d2c16afd19252a16df1cc698c4d7dd4c9c54b66cdab6bd5aef
+d066c4c61edff024ae2e9d40988194488f465f74a5eacfbf9f52c36413e99fe2
