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V4L/DVB (5570): V4l1-compat: misc fixes for pixelformat function

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Mark the palette2pixelformat lookup table as const

pixelformat is unsigned, adjust the palette2pixelformat table and
pixelformat_to_palette()

palette_to_pixelformat() is a pure function

pixelformat_to_palette() is a const function

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Trent Piepho 2007-04-27 22:56:28 -03:00 committed by Mauro Carvalho Chehab
parent 452c0fb46b
commit 5f12491c36
1 changed files with 4 additions and 4 deletions
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8
drivers/media/video/v4l1-compat.c
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@ -127,7 +127,7 @@ set_v4l_control(struct inode *inode,
/* ----------------------------------------------------------------- */
static int palette2pixelformat[] = {
const static unsigned int palette2pixelformat[] = {
[VIDEO_PALETTE_GREY] = V4L2_PIX_FMT_GREY,
[VIDEO_PALETTE_RGB555] = V4L2_PIX_FMT_RGB555,
[VIDEO_PALETTE_RGB565] = V4L2_PIX_FMT_RGB565,
@ -145,7 +145,7 @@ static int palette2pixelformat[] = {
[VIDEO_PALETTE_YUV422P] = V4L2_PIX_FMT_YUV422P,
};
static unsigned int
static unsigned int __attribute_pure__
palette_to_pixelformat(unsigned int palette)
{
if (palette < ARRAY_SIZE(palette2pixelformat))
@ -154,8 +154,8 @@ palette_to_pixelformat(unsigned int palette)
return 0;
}
static unsigned int
pixelformat_to_palette(int pixelformat)
static unsigned int __attribute_const__
pixelformat_to_palette(unsigned int pixelformat)
{
int palette = 0;
switch (pixelformat)