linux-kernel - [PATCH 5.4 114/147] Make the "Reducing compressed framebufer size" message be DRM_INFO

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Message-Id: <20200518173527.265985773@linuxfoundation.org>
Date:   Mon, 18 May 2020 19:37:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peter Jones <pjones@...hat.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>
Subject: [PATCH 5.4 114/147] Make the "Reducing compressed framebufer size" message be DRM_INFO_ONCE()

From: Peter Jones <pjones@...hat.com>

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@...r.kernel.org
Signed-off-by: Peter Jones <pjones@...hat.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@...el.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@...ux.intel.com>
(cherry picked from commit 6b7fc6a3e6af4ff5773949d0fed70d8e7f68d5ce)
[Rodrigo: port back to DRM_INFO_ONCE]
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/i915/display/intel_fbc.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- 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 in
 	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;