This is a note to let you know that I've just added the patch titled
drm/tegra: fbdev: Remove offset into framebuffer memory
to the 6.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-tegra-fbdev-remove-offset-into-framebuffer-memory.patch
and it can be found in the queue-6.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
From [email protected] Fri Jul 31 04:41:11 2026
From: Sasha Levin <[email protected]>
Date: Thu, 30 Jul 2026 22:41:01 -0400
Subject: drm/tegra: fbdev: Remove offset into framebuffer memory
To: [email protected]
Cc: Thomas Zimmermann <[email protected]>, [email protected], [email protected], Thierry Reding <[email protected]>, Sasha Levin <[email protected]>
Message-ID: <[email protected]>
From: Thomas Zimmermann <[email protected]>
[ Upstream commit a18b6e30ecd69096beda4a0c96d2570900c3879a ]
The screen_buffer field in struct fb_info contains the kernel address
of the first byte of framebuffer memory. Do not add the display offset.
This offset only describes scrolling during scanout.
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: de2ba664c30f ("gpu: host1x: drm: Add memory manager and fb")
Cc: [email protected]
Cc: [email protected]
Cc: <[email protected]> # v3.10+
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/tegra/fbdev.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/tegra/fbdev.c
+++ b/drivers/gpu/drm/tegra/fbdev.c
@@ -78,7 +78,6 @@ int tegra_fbdev_driver_fbdev_probe(struc
struct fb_info *info = helper->info;
unsigned int bytes_per_pixel;
struct drm_framebuffer *fb;
- unsigned long offset;
struct tegra_bo *bo;
size_t size;
int err;
@@ -118,9 +117,6 @@ int tegra_fbdev_driver_fbdev_probe(struc
drm_fb_helper_fill_info(info, helper, sizes);
- offset = info->var.xoffset * bytes_per_pixel +
- info->var.yoffset * fb->pitches[0];
-
if (bo->pages) {
bo->vaddr = vmap(bo->pages, bo->num_pages, VM_MAP,
pgprot_writecombine(PAGE_KERNEL));
@@ -132,9 +128,9 @@ int tegra_fbdev_driver_fbdev_probe(struc
}
info->flags |= FBINFO_VIRTFB;
- info->screen_buffer = bo->vaddr + offset;
+ info->screen_buffer = bo->vaddr;
info->screen_size = size;
- info->fix.smem_start = (unsigned long)(bo->iova + offset);
+ info->fix.smem_start = (unsigned long)(bo->iova);
info->fix.smem_len = size;
return 0;
Patches currently in stable-queue which might be from [email protected] are
queue-6.18/net-dsa-mt7530-check-bus-read-errors-in-the-mdio-reg.patch
queue-6.18/drm-xe-guc-fix-buffer-overflow-in-steered-register-list-allocation.patch
queue-6.18/drm-xe-rtp-de-whitelist-oa-registers-for-all-hwe-s-f.patch
queue-6.18/media-uapi-rkisp-correct-name-version-enum.patch
queue-6.18/net-sxgbe-free-tx-rings-on-rx-allocation-failure.patch
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queue-6.18/usb-typec-ucsi-fix-race-condition-and-ordering-in-port-unregistration.patch
queue-6.18/asoc-sdca-ensure-that-control-range-is-large-enough-.patch
queue-6.18/ice-suppress-dpll-errors-during-reset-recovery.patch
queue-6.18/drivers-hv-allocate-the-paravisor-synic-pages-when-r.patch
queue-6.18/scsi-ufs-core-avoid-irq-thread-wakeup-during-active-.patch
queue-6.18/drm-fb-helper-allocate-and-release-fb_info-in-single-place.patch
queue-6.18/drm-xe-rtp-maintain-oa-whitelists-separately.patch
queue-6.18/pinctrl-qcom-sc8280xp-add-missing-wakeup-entries-for.patch
queue-6.18/forcedeth-fix-uaf-of-txrx_stats-in-nv_remove.patch
queue-6.18/hid-logitech-dj-standardise-hid_report_enum-variable.patch
queue-6.18/scsi-libsas-fix-ha-resume-deadlock-and-hisi_sas-disk.patch
queue-6.18/selftest-af_unix-create-its-own-.gitignore.patch
queue-6.18/netfilter-nft_payload-fix-mask-build-for-partial-fie.patch
queue-6.18/ptp-netc-fix-potential-interrupt-storm-caused-by-inc.patch
queue-6.18/bluetooth-iso-fix-timeout-vs-sync_timeout-typo-in-ch.patch
queue-6.18/net-sxgbe-check-descriptor-ring-allocation-failures.patch
queue-6.18/bluetooth-iso-fix-data-race-on-iso_pi-sk-in-socket-a.patch
queue-6.18/ipvs-fix-the-checksum-validations.patch
queue-6.18/net-handshake-drain-pending-requests-at-net-namespac.patch
queue-6.18/media-qcom-camss-csid-340-fix-unused-variables.patch
queue-6.18/phy-qcom-m31-eusb2-fix-return-value-of-init-call.patch
queue-6.18/hwmon-ina2xx-fix-various-overflow-issues.patch
queue-6.18/spi-spi-cadence-move-tx-fifo-full-busy-wait-into-fif.patch
queue-6.18/powerpc-boot-fix-simpleboot-cpu-node-lookup-check.patch
queue-6.18/ata-sata_mv-accept-1-or-2-resources-in-platform-prob.patch
queue-6.18/arch-x86-mshyperv-discover-confidential-vmbus-availa.patch
queue-6.18/drm-xe-rtp-generalize-whitelist_apply_to_hwe.patch
queue-6.18/wifi-mac80211-validate-individual-twt-params-before-.patch
queue-6.18/drivers-hv-rename-fields-for-synic-message-and-event.patch
queue-6.18/mm-hugetlb-fix-swap-entry-corruption-when-clearing-u.patch
queue-6.18/selftests-af_unix-add-tests-for-econnreset-and-eof-s.patch
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queue-6.18/drm-xe-oa-de-whitelist-oa-registers-on-oa-stream-ope.patch
queue-6.18/drm-xe-rtp-save-oa-nonpriv-registers-to-register-sav.patch
queue-6.18/bluetooth-hci_sync-remove-unnecessary-hci_conn_get-i.patch
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queue-6.18/iommu-arm-smmu-v3-iommufd-require-exactly-one-stream.patch
queue-6.18/selftests-net-af_unix-test-listen-rejects-wrong-sock.patch
queue-6.18/file-ensure-cleanup.patch
queue-6.18/drm-xe-rtp-refactor-oag-mmio-trigger-register-whitel.patch
queue-6.18/hwmon-ina2xx-add-support-for-ina234.patch
queue-6.18/powerpc-boot-fix-treeboot-currituck-cpu-node-lookup-.patch
queue-6.18/mshv-fix-level-triggered-check-on-uninitialized-data.patch
queue-6.18/keys-make-keyring-key-chunk-byte-order-agree-with-ke.patch
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queue-6.18/hwmon-adt7470-fix-fans-stuck-in-manual-mode-on-i2c-e.patch
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queue-6.18/ata-ahci_ceva-fix-error-paths-in-ceva_ahci_platform_.patch
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queue-6.18/netfilter-nf_conntrack_sip-widen-nat-rewrite-delta-t.patch
queue-6.18/selftests-seccomp-fix-pointer-type-mismatch-build-er.patch
queue-6.18/netfs-handle-single-writeback-rolling-buffer-allocat.patch
queue-6.18/usb-typec-ucsi-split-connector-lock-classes.patch
queue-6.18/net-udp_tunnel-fix-memory-leak-in-udp_tunnel_nic_unr.patch
queue-6.18/bluetooth-iso-validate-sockaddr_iso-first-in-iso_soc.patch
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queue-6.18/of-reserved_mem-prevent-oob-when-too-many-dynamic-re.patch
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queue-6.18/net-do-not-send-icmp-ndisc-redirects-when-peer-alloc.patch
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