On Fri, Mar 31, 2023 at 10:24 AM Tom Rix <trix@xxxxxxxxxx> wrote:
>
> clang with W=1 reports
> drivers/gpu/drm/qxl/qxl_ioctl.c:149:14: error: variable
> 'num_relocs' set but not used [-Werror,-Wunused-but-set-variable]
> int i, ret, num_relocs;
> ^
> This variable is not used so remove it.
>
> Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Thanks for the patch!
Fixes: 74d9a6335dce ("drm/qxl: Simplify cleaning qxl processing command")
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
That commit should also have removed the label out_free_bos IMO since
having two labels for the same statement is a code smell. Tom, do you
mind sending a v2 with that folded in?
> ---
> drivers/gpu/drm/qxl/qxl_ioctl.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
> index 30f58b21372a..3422206d59d4 100644
> --- a/drivers/gpu/drm/qxl/qxl_ioctl.c
> +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
> @@ -146,7 +146,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
> struct qxl_release *release;
> struct qxl_bo *cmd_bo;
> void *fb_cmd;
> - int i, ret, num_relocs;
> + int i, ret;
> int unwritten;
>
> switch (cmd->type) {
> @@ -201,7 +201,6 @@ static int qxl_process_single_command(struct qxl_device *qdev,
> }
>
> /* fill out reloc info structs */
> - num_relocs = 0;
> for (i = 0; i < cmd->relocs_num; ++i) {
> struct drm_qxl_reloc reloc;
> struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);
> @@ -231,7 +230,6 @@ static int qxl_process_single_command(struct qxl_device *qdev,
> reloc_info[i].dst_bo = cmd_bo;
> reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
> }
> - num_relocs++;
>
> /* reserve and validate the reloc dst bo */
> if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
> --
> 2.27.0
>
--
Thanks,
~Nick Desaulniers
