Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7a7cd1920969dd9da4e0d99aab573b3eba24c799
Commit: 7a7cd1920969dd9da4e0d99aab573b3eba24c799
Parent: 21b48a70f7e26906d522c81b22228b375b450a8f
Author: Oliver Endriss <[EMAIL PROTECTED]>
AuthorDate: Tue Mar 13 23:44:57 2007 -0300
Committer: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Tue Mar 27 08:45:56 2007 -0300
V4L/DVB (5441): Saa7146: Fix allocation of clipping memory
Olaf Hering pointed out that SAA7146_CLIPPING_MEM would become
very large for PAGE_SIZE > 4K.
In fact, the number of clipping windows is limited to 16,
and calculate_clipping_registers_rect() does not use more
than 256 bytes. SAA7146_CLIPPING_MEM adjusted accordingly.
Thanks-to: Olaf Hering <[EMAIL PROTECTED]>
Acked-by: Michael Hunold <[EMAIL PROTECTED]>
Signed-off-by: Oliver Endriss <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
include/media/saa7146_vv.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h
index 83fe2e3..50e33b0 100644
--- a/include/media/saa7146_vv.h
+++ b/include/media/saa7146_vv.h
@@ -239,7 +239,8 @@ void saa7146_res_free(struct saa7146_fh *fh, unsigned int
bits);
#define SAA7146_HPS_SYNC_PORT_B 0x01
/* some memory sizes */
-#define SAA7146_CLIPPING_MEM (14*PAGE_SIZE)
+/* max. 16 clipping rectangles */
+#define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32))
/* some defines for the various clipping-modes */
#define SAA7146_CLIPPING_RECT 0x4
-
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