[PATCH 71/99] fbdev/savagefb: Parse option string with struct option_iter
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2023-03-06 16:06:51
Also in:
dri-devel, lkml
Subsystem:
framebuffer layer, s3 savage 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/savage/savagefb_driver.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
index 19fffe0b6cdd..94026848d67d 100644
--- a/drivers/video/fbdev/savage/savagefb_driver.c
+++ b/drivers/video/fbdev/savage/savagefb_driver.c@@ -42,6 +42,7 @@ */ #include <linux/aperture.h> +#include <linux/cmdline.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h>
@@ -2535,15 +2536,15 @@ static void __exit savage_done(void) /* ************************* init in-kernel code ************************** */ -static int __init savagefb_setup(char *options) +static int __init savagefb_setup(const char *options) { #ifndef MODULE - char *this_opt; + 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)) { static char mode_option_buf[256]; int ret;
@@ -2554,6 +2555,9 @@ static int __init savagefb_setup(char *options) continue; mode_option = mode_option_buf; } + + option_iter_release(&iter); + #endif /* !MODULE */ return 0; }
--
2.39.2