On Wed, 08 Dec 2021, cgel.zte@gmail.com wrote:
From: luo penghao luo.penghao@zte.com.cn
The existence of offset is meaningless, so it should be deleted.
The clang_analyzer complains as follows:
Value stored to 'offset' is never read
Reported-by: Zeal Robot zealci@zte.com.cn Signed-off-by: luo penghao luo.penghao@zte.com.cn
I've said the same things before, and I'll say them again.
Having an unused variable like this could be an indication of a bug introduced by an earlier change; maybe we should still be using the variable but no longer do. Please figure out when the variable became unused and reference the commit so we can tell.
If cgel.zte@gmail.com sends the patches, we'll need their name and Signed-off-by too.
Thanks for the report, but I'll consider this as a report only.
BR, Jani.
drivers/gpu/drm/i915/display/i9xx_plane.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c index b1439ba..a478b7f 100644 --- a/drivers/gpu/drm/i915/display/i9xx_plane.c +++ b/drivers/gpu/drm/i915/display/i9xx_plane.c @@ -964,7 +964,7 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, struct intel_plane *plane = to_intel_plane(crtc->base.primary); enum i9xx_plane_id i9xx_plane = plane->i9xx_plane; enum pipe pipe;
- u32 val, base, offset;
- u32 val, base; int fourcc, pixel_format; unsigned int aligned_height; struct drm_framebuffer *fb;
@@ -1006,14 +1006,14 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, fb->format = drm_format_info(fourcc);
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
offset = intel_de_read(dev_priv, DSPOFFSET(i9xx_plane));
base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & 0xfffff000; } else if (DISPLAY_VER(dev_priv) >= 4) { if (plane_config->tiling)intel_de_read(dev_priv, DSPOFFSET(i9xx_plane));
offset = intel_de_read(dev_priv,
elseintel_de_read(dev_priv, DSPTILEOFF(i9xx_plane));
offset = intel_de_read(dev_priv,
base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & 0xfffff000; } else {intel_de_read(dev_priv, DSPLINOFF(i9xx_plane));