[PATCH 35/99] fbdev/i810: Parse option string with struct option_iter
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2023-03-06 16:03:00
Also in:
dri-devel, lkml
Subsystem:
framebuffer layer, intel 810/815 framebuffer driver, the rest · Maintainers:
Helge Deller, Antonino Daplas, Linus Torvalds
Use struct option_iter to walk over the individual options in the driver's option string. Replaces the hand-written strsep() loop with a clean interface. The helpers for struct option_iter handle empty option strings and empty options transparently. The struct's _init and _release functions duplicate and release the option string's memory buffer as needed. Done in preparation of constifying the option string. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/video/fbdev/i810/i810_main.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/i810/i810_main.c b/drivers/video/fbdev/i810/i810_main.c
index 66f94dfaef16..3e624522fe7a 100644
--- a/drivers/video/fbdev/i810/i810_main.c
+++ b/drivers/video/fbdev/i810/i810_main.c@@ -29,6 +29,7 @@ */ #include <linux/aperture.h> +#include <linux/cmdline.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h>
@@ -1958,14 +1959,15 @@ static void i810fb_find_init_mode(struct fb_info *info) } #ifndef MODULE -static int i810fb_setup(char *options) +static int i810fb_setup(const char *options) { - char *this_opt, *suffix = NULL; + char *suffix = NULL; + struct option_iter iter; + const char *this_opt; - if (!options || !*options) - return 0; + option_iter_init(&iter, options); - while ((this_opt = strsep(&options, ",")) != NULL) { + while (option_iter_next(&iter, this_opt)) { if (!strncmp(this_opt, "mtrr", 4)) mtrr = true; else if (!strncmp(this_opt, "accel", 5))
@@ -2014,6 +2016,9 @@ static int i810fb_setup(char *options) mode_option = mode_option_buf; } } + + option_iter_release(&iter); + return 0; } #endif
--
2.39.2