Make the "Reducing compressed framebufer size" message be DRM_INFO_ONCE()

commit 82152d424b6cb6fc1ede7d03d69c04e786688740 upstream.

This was sort of annoying me:

random:~$ dmesg | tail -1
[523884.039227] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS.
random:~$ dmesg | grep -c "Reducing the compressed"
47

This patch makes it DRM_INFO_ONCE() just like the similar message
farther down in that function is pr_info_once().

Cc: stable@vger.kernel.org
Signed-off-by: Peter Jones <pjones@redhat.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1745
Link: https://patchwork.freedesktop.org/patch/msgid/20180706190424.29194-1-pjones@redhat.com
[vsyrjala: Rebase due to per-device logging]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 6b7fc6a3e6af4ff5773949d0fed70d8e7f68d5ce)
[Rodrigo: port back to DRM_INFO_ONCE]
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 07a038f21619c092f6dbf0251fd8b9915531bad6..caf6166622e4b546200974d000060f12d28e26c9 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -504,8 +504,7 @@ static int intel_fbc_alloc_cfb(struct intel_crtc *crtc)
        if (!ret)
                goto err_llb;
        else if (ret > 1) {
-               DRM_INFO("Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS.\n");
-
+               DRM_INFO_ONCE("Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS.\n");
        }
 
        fbc->threshold = ret;