[PATCH 73/99] fbdev/sisfb: Parse option string with struct option_iter
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2023-03-06 16:05:30
Also in:
dri-devel, lkml
Subsystem:
framebuffer layer, sis framebuffer driver, the rest · Maintainers:
Helge Deller, 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/sis/sis_main.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c
index c16493d3ac4f..7e6e2251e62f 100644
--- a/drivers/video/fbdev/sis/sis_main.c
+++ b/drivers/video/fbdev/sis/sis_main.c@@ -20,6 +20,7 @@ */ #include <linux/aperture.h> +#include <linux/cmdline.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h>
@@ -54,7 +55,7 @@ /* Interface used by the world */ #ifndef MODULE -static int sisfb_setup(char *options); +static int sisfb_setup(const char *options); #endif /* Interface to the low level console driver */
@@ -3987,19 +3988,16 @@ sisfb_handle_command(struct sis_video_info *ivideo, struct sisfb_cmd *sisfb_comm } #ifndef MODULE -static int __init sisfb_setup(char *options) +static int __init sisfb_setup(const char *options) { - char *this_opt; + struct option_iter iter; + const char *this_opt; sisfb_setdefaultparms(); - if(!options || !(*options)) - return 0; - - while((this_opt = strsep(&options, ",")) != NULL) { - - if(!(*this_opt)) continue; + option_iter_init(&iter, options); + while (option_iter_next(&iter, this_opt)) { if(!strncasecmp(this_opt, "off", 3)) { sisfb_off = 1; } else if(!strncasecmp(this_opt, "forcecrt2type:", 14)) {
@@ -4081,6 +4079,8 @@ static int __init sisfb_setup(char *options) } + option_iter_release(&iter); + return 0; } #endif
--
2.39.2