user/sven/linux.git/drivers/interconnect/qcom, branch master

interconnect: qcom: sm8450: Fix NULL pointer dereference in icc_link_nodes()

2026-03-14T10:53:13Z

The change to dynamic IDs for SM8450 platform interconnects left two links unconverted, fix it to avoid the NULL pointer dereference in runtime, when a pointer to a destination interconnect is not valid: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 <...> Call trace: icc_link_nodes+0x3c/0x100 (P) qcom_icc_rpmh_probe+0x1b4/0x528 platform_probe+0x64/0xc0 really_probe+0xc4/0x2a8 __driver_probe_device+0x80/0x140 driver_probe_device+0x48/0x170 __device_attach_driver+0xc0/0x148 bus_for_each_drv+0x88/0xf0 __device_attach+0xb0/0x1c0 device_initial_probe+0x58/0x68 bus_probe_device+0x40/0xb8 deferred_probe_work_func+0x90/0xd0 process_one_work+0x15c/0x3c0 worker_thread+0x2e8/0x400 kthread+0x150/0x208 ret_from_fork+0x10/0x20 Code: 900310f4 911d6294 91008280 94176078 (f94002a0) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Oops: Fatal exception Fixes: 51513bec806f ("interconnect: qcom: sm8450: convert to dynamic IDs") Signed-off-by: Vladimir Zapolskiy Reviewed-by: Dmitry Baryshkov Link: https://msgid.link/20260314012933.350644-1-vladimir.zapolskiy@linaro.org Signed-off-by: Georgi Djakov

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

interconnect: qcom: msm8974: drop duplicated RPM_BUS_{MASTER,SLAVE}_REQ defines

2026-01-22T20:36:31Z

Both the RPM_BUS_MASTER_REQ and the RPM_BUS_SLAVE_REQ constants are also defined in the 'icc-rpm.h' header. $ git grep -nHE 'define[[:blank:]]+RPM_BUS_MASTER_REQ[[:blank:]]' drivers/interconnect/qcom/icc-rpm.h:16:#define RPM_BUS_MASTER_REQ 0x73616d62 drivers/interconnect/qcom/msm8974.c:176:#define RPM_BUS_MASTER_REQ 0x73616d62 $ git grep -nHE 'define[[:blank:]]+RPM_BUS_SLAVE_REQ[[:blank:]]' drivers/interconnect/qcom/icc-rpm.h:17:#define RPM_BUS_SLAVE_REQ 0x766c7362 drivers/interconnect/qcom/msm8974.c:177:#define RPM_BUS_SLAVE_REQ 0x766c7362 Drop the local defines to avoid the duplications. No functional changes intended. Compile tested only. Signed-off-by: Gabor Juhos Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20260122-icc-qcom-dupe-defines-v1-2-eea876c2d98f@gmail.com Signed-off-by: Georgi Djakov

interconnect: qcom: smd-rpm: drop duplicated QCOM_RPM_SMD_KEY_RATE define

2026-01-22T20:36:20Z

The 'linux/soc/qcom/smd-rpm.h' header defines QCOM_RPM_SMD_KEY_RATE with the exact same value. $ git grep -nHE 'define[[:blank:]]+QCOM_RPM_SMD_KEY_RATE[[:blank:]]' drivers/interconnect/qcom/smd-rpm.c:17:#define QCOM_RPM_SMD_KEY_RATE 0x007a484b include/linux/soc/qcom/smd-rpm.h:52:#define QCOM_RPM_SMD_KEY_RATE 0x007a484b Drop the local define to avoid the duplication. No functional changes intended. Compile tested only. Signed-off-by: Gabor Juhos Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20260122-icc-qcom-dupe-defines-v1-1-eea876c2d98f@gmail.com Signed-off-by: Georgi Djakov

interconnect: qcom: qcs8300: fix the num_links for nsp icc node

2026-01-21T09:46:05Z

The qxm_nsp node is configured with an incorrect num_links value, causing remoteproc driver to fail probing because it cannot acquire the interconnect path for qxm_nsp -> ebi. This results in the following error in dmesg: platform 26300000.remoteproc: deferred probe pending: qcom_q6v5_pas: failed to acquire interconnect path Set num_links to 2 to match the two link_nodes, allowing remoteproc clients to obtain the correct path handle and vote on qxm_nsp -> ebi. Fixes: 874be3339c85 ("interconnect: qcom: qcs8300: convert to dynamic IDs") Signed-off-by: Raviteja Laggyshetty Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20260120-monaco_num_links_fix_nsp_ebi_path-v3-1-536be21ce3ff@oss.qualcomm.com Signed-off-by: Georgi Djakov

interconnect: qcom: sm6350: enable QoS configuration

2025-11-19T14:03:12Z

Enable QoS configuration for master ports with predefined values for priority and urgency forwarding. While this does require some "clocks" to be specified in devicetree to work correctly, thanks to ".qos_requires_clocks = true," this is backwards compatible with old DT as QoS programming will be skipped for aggre1_noc and aggre2_noc when clocks are not provided. Reviewed-by: Dmitry Baryshkov Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-4-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov

interconnect: qcom: sm6350: Remove empty BCM arrays

2025-11-19T14:03:09Z

Clean up the code by removing empty BCM arrays to save some lines. Reviewed-by: Dmitry Baryshkov Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-3-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpmh: Get parent's regmap for nested NoCs

2025-11-19T14:03:05Z

Since commit 57eb14779dfd ("interconnect: qcom: icc-rpmh: Support child NoC device probe") the icc-rpmh driver supports initializing child NoCs, but those child NoCs also need to be able to get the parent's regmap in order to enable QoS. Change the driver to support that and support programming QoS register. Signed-off-by: Luca Weiss Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-2-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov

Merge branch 'icc-dynamic-ids' into icc-next

2025-11-19T13:53:04Z

Currently most of Qualcomm interconnect drivers use static IDs, which poses a threat of possible conflicts with other drivers. Rework RPMh interconnect drivers to use dynamic IDs and drop static IDs code. * icc-dynamic-ids interconnect: qcom: icc-rpmh: convert link_nodes to dynamic array interconnect: qcom: sc7280: convert to dynamic IDs interconnect: qcom: sc8180x: convert to dynamic IDs interconnect: qcom: sc8280xp: convert to dynamic IDs interconnect: qcom: sdm845: convert to dynamic IDs interconnect: qcom: sm8250: convert to dynamic IDs interconnect: qcom: x1e80100: convert to dynamic IDs interconnect: qcom: qcs615: convert to dynamic IDs interconnect: qcom: qcs8300: convert to dynamic IDs interconnect: qcom: qdu1000: convert to dynamic IDs interconnect: qcom: sar2130p: convert to dynamic IDs interconnect: qcom: sc7180: convert to dynamic IDs interconnect: qcom: sdm670: convert to dynamic IDs interconnect: qcom: sdx55: convert to dynamic IDs interconnect: qcom: sdx65: convert to dynamic IDs interconnect: qcom: sdx75: convert to dynamic IDs interconnect: qcom: sm6350: convert to dynamic IDs interconnect: qcom: sm7150: convert to dynamic IDs interconnect: qcom: sm8150: convert to dynamic IDs interconnect: qcom: sm8350: convert to dynamic IDs interconnect: qcom: sm8450: convert to dynamic IDs interconnect: qcom: sm8550: convert to dynamic IDs interconnect: qcom: sm8650: convert to dynamic IDs interconnect: qcom: sm8750: convert to dynamic IDs interconnect: qcom: icc-rpmh: drop support for non-dynamic IDS Link: https://lore.kernel.org/r/20251031-rework-icc-v3-0-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov