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drm/modes: parse_cmdline: Make various char pointers const

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We are not supposed to modify the passed in string, make char pointers
used in drm_mode_parse_cmdline_options() const char * where possible.

Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-2-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2019-11-18 16:51:23 +01:00
parent 8582e244e5
commit 83e14ea3a6
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/drm_modes.c
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@ -1591,15 +1591,15 @@ static int drm_mode_parse_cmdline_int(const char *delim, unsigned int *int_ret)
return 0;
}
static int drm_mode_parse_cmdline_options(char *str, size_t len,
static int drm_mode_parse_cmdline_options(const char *str, size_t len,
const struct drm_connector *connector,
struct drm_cmdline_mode *mode)
{
unsigned int deg, margin, rotation = 0;
char *sep = str;
const char *sep = str;
while ((sep = strchr(sep, ','))) {
char *delim, *option;
const char *delim, *option;
option = sep + 1;
delim = strchr(option, '=');
@ -1718,8 +1718,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
bool named_mode = false, parse_extras = false;
unsigned int bpp_off = 0, refresh_off = 0, options_off = 0;
unsigned int mode_end = 0;
char *bpp_ptr = NULL, *refresh_ptr = NULL, *extra_ptr = NULL;
char *options_ptr = NULL;
const char *bpp_ptr = NULL, *refresh_ptr = NULL, *extra_ptr = NULL;
const char *options_ptr = NULL;
char *bpp_end_ptr = NULL, *refresh_end_ptr = NULL;
int ret;