On Thu, 01 Feb 2024, Cong Liu <liucong2@xxxxxxxxxx> wrote: > This patch replaces the use of the deprecated simple_strtol [1] function > in the drm_modes.c file with the recommended kstrtol function. This change > improves error handling and boundary checks. > > [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#simple-strtol-simple-strtoll-simple-strtoul-simple-strtoull > > Signed-off-by: Cong Liu <liucong2@xxxxxxxxxx> This is completely wrong, and obviously not tested at all. The recommended replacements are *not* drop-in replacements. Look into the documentation of the functions. BR, Jani. > --- > drivers/gpu/drm/drm_modes.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c > index 893f52ee4926..fce0fb1df9b2 100644 > --- a/drivers/gpu/drm/drm_modes.c > +++ b/drivers/gpu/drm/drm_modes.c > @@ -1942,7 +1942,7 @@ static int drm_mode_parse_cmdline_bpp(const char *str, char **end_ptr, > return -EINVAL; > > str++; > - bpp = simple_strtol(str, end_ptr, 10); > + bpp = kstrtol(str, end_ptr, 10); > if (*end_ptr == str) > return -EINVAL; > > @@ -1961,7 +1961,7 @@ static int drm_mode_parse_cmdline_refresh(const char *str, char **end_ptr, > return -EINVAL; > > str++; > - refresh = simple_strtol(str, end_ptr, 10); > + refresh = kstrtol(str, end_ptr, 10); > if (*end_ptr == str) > return -EINVAL; > > @@ -2033,7 +2033,7 @@ static int drm_mode_parse_cmdline_res_mode(const char *str, unsigned int length, > int remaining, i; > char *end_ptr; > > - xres = simple_strtol(str, &end_ptr, 10); > + xres = kstrtol(str, &end_ptr, 10); > if (end_ptr == str) > return -EINVAL; > > @@ -2042,7 +2042,7 @@ static int drm_mode_parse_cmdline_res_mode(const char *str, unsigned int length, > end_ptr++; > > str = end_ptr; > - yres = simple_strtol(str, &end_ptr, 10); > + yres = kstrtol(str, &end_ptr, 10); > if (end_ptr == str) > return -EINVAL; > > @@ -2100,7 +2100,7 @@ static int drm_mode_parse_cmdline_int(const char *delim, unsigned int *int_ret) > return -EINVAL; > > value = delim + 1; > - *int_ret = simple_strtol(value, &endp, 10); > + *int_ret = kstrtol(value, &endp, 10); > > /* Make sure we have parsed something */ > if (endp == value) -- Jani Nikula, Intel
