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staging: xgifb: eliminate string comparison from mode search 

Eliminate string comparison from the video mode search.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aaro Koskinen 2012-04-07 01:13:55 +03:00 committed by Greg Kroah-Hartman
parent f47f12d621
commit f9e5de0f17
1 changed files with 17 additions and 10 deletions
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27
drivers/staging/xgifb/XGI_main_26.c
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@ -390,19 +390,26 @@ static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info, static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
const char *name) const char *name)
{ {
int i = 0, j = 0, l; unsigned int xres;
unsigned int yres;
unsigned int bpp;
int i;
while (XGIbios_mode[i].mode_no != 0) { if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
l = min(strlen(name), strlen(XGIbios_mode[i].name)); goto invalid_mode;
if (!strncmp(name, XGIbios_mode[i].name, l)) {
if (bpp == 24)
bpp = 32; /* That's for people who mix up color and fb depth. */
for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
if (XGIbios_mode[i].xres == xres &&
XGIbios_mode[i].yres == yres &&
XGIbios_mode[i].bpp == bpp) {
xgifb_info->mode_idx = i; xgifb_info->mode_idx = i;
j = 1; return;
break;
} }
i++; invalid_mode:
} pr_info("Invalid mode '%s'\n", name);
if (!j)
pr_info("Invalid mode '%s'\n", name);
} }
static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info, static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,