[PATCH 04/11] tty: vt: use sizeof(*variable) where possible

Jiri Slaby (SUSE)
2023-01-12T08:02:29Z

Instead of sizeof(type), use sizeof(*variable) which is preferred. We
are going to remove the unicode's char32_t typedef, so this makes the
switch easier.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
---
drivers/tty/vt/vt.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 561c82e120cf..3ae0212f1aa7 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -330,11 +330,11 @@ static struct uni_screen *vc_uniscr_alloc(unsigned int cols, unsigned int rows)
{
struct uni_screen *uniscr;
void *p;
- unsigned int memsize, i;
+ unsigned int memsize, i, col_size = cols * sizeof(**uniscr->lines);

/* allocate everything in one go */
- memsize = cols * rows * sizeof(char32_t);
- memsize += rows * sizeof(char32_t *);
+ memsize = col_size * rows;
+ memsize += rows * sizeof(*uniscr->lines);
p = vzalloc(memsize);
if (!p)
return NULL;
@@ -344,7 +344,7 @@ static struct uni_screen *vc_uniscr_alloc(unsigned int cols, unsigned int rows)
p = uniscr->lines + rows;
for (i = 0; i < rows; i++) {
uniscr->lines[i] = p;
- p += cols * sizeof(char32_t);
+ p += col_size;
}
return uniscr;
}
@@ -469,7 +469,7 @@ static void vc_uniscr_copy_area(struct uni_screen *dst,
char32_t *src_line = src->lines[src_top_row];
char32_t *dst_line = dst->lines[dst_row];

- memcpy(dst_line, src_line, src_cols * sizeof(char32_t));
+ memcpy(dst_line, src_line, src_cols * sizeof(*src_line));
if (dst_cols - src_cols)
memset32(dst_line + src_cols, ' ', dst_cols - src_cols);
src_top_row++;
--
2.39.0