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2025-07-09serial: core: fix OF node leakJohan Hovold
Make sure to drop the OF node reference taken when initialising the control and port devices when the devices are later released. Fixes: d36f0e9a0002 ("serial: core: restore of_node information in sysfs") Cc: Aidan Stewart <astewart@tektelic.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250708085817.16070-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09lpfc: don't use file->f_path.dentry for comparisonsAl Viro
If you want a home-grown switch, at least use enum for selector... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20250708025734.GT1880847@ZenIV Reviewed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09debugfs_get_aux(): allow storing non-const void *Al Viro
typechecking is up to users, anyway... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20250702212616.GI3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09fix tt_command_write()Al Viro
1) unbalanced debugfs_file_get(). Not needed in the first place - file_operations are accessed only via debugfs_create_file(), so debugfs wrappers will take care of that itself. 2) kmalloc() for a buffer used only for duration of a function is not a problem, but for a buffer no longer than 16 bytes? 3) strstr() is for finding substrings; for finding a character there's strchr(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/20250702212542.GH3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09netronome: don't bother with debugfs_real_fops()Al Viro
Just turn nfp_tx_q_show() into a wrapper for helper that gets told whether it's tx or xdp via an explicit argument and have nfp_xdp_q_show() call the underlying helper instead. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Reviewed-by: Louis Peens <louis.peens@corigine.com> Link: https://lore.kernel.org/r/20250702212205.GF3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09regmap: get rid of redundant debugfs_file_{get,put}()Al Viro
pointless in ->read()/->write() of file_operations used only via debugfs_create_file() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20250702211602.GC3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09hfi1: get rid of redundant debugfs_file_{get,put}()Al Viro
All files in question are created via debugfs_create_file(), so exclusion with removals is provided by debugfs wrappers; as the matter of fact, hfi1-private wrappers had been redundant at least since 2017... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20250702211508.GB3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09zynqmp: don't bother with debugfs_file_{get,put}() in proxied fopsAl Viro
When debugfs file has been created by debugfs_create_file_unsafe(), we do need the file_operations methods to use debugfs_file_{get,put}() to prevent concurrent removal; for files created by debugfs_create_file() that is done in the wrappers that call underlying methods, so there's no point whatsoever duplicating that in the underlying methods themselves. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20250702211408.GA3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09cpuidle: riscv-sbi: Drop redundant sync_state supportUlf Hansson
The recent updates to the genpd core, can entirely manage the sync_state support for the cpuidle-riscv-sbi-domain. More precisely, genpd prevents our ->power_off() callback from being invoked, until all of our consumers are ready for it. Let's therefore drop the sync_state support for the cpuidle-riscv-sbi-domain as it has become redundant. Cc: Anup Patel <anup@brainfault.org> Cc: linux-riscv@lists.infradead.org Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-25-ulf.hansson@linaro.org
2025-07-09cpuidle: psci: Drop redundant sync_state supportUlf Hansson
The recent updates to the genpd core, can entirely manage the sync_state support for the cpuidle-psci-domain. More precisely, genpd prevents our ->power_off() callback from being invoked, until all of our consumers are ready for it. Let's therefore drop the sync_state support for the cpuidle-psci-domain as it has become redundant. Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-24-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Leave powered-on genpds on until sync_stateUlf Hansson
Powering-off a genpd that was on during boot, before all of its consumer devices have been probed, is certainly prone to problems. For OF based platforms we can rely on using the sync_state mechanism that the fw_devlink provides, to understand when all consumers for a genpd provider have been probed. Let's therefore prevent these genpds from being powered-off until the ->sync_state() callback gets called. Note that, for non-OF based platform we will keep relying on the late_initcall_sync, which seems to be the best we can do for now. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-23-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Leave powered-on genpds on until late_initcall_syncUlf Hansson
Powering-off a genpd that was on during boot, before all of its consumer devices have been probed, is certainly prone to problems. As a step to improve this situation, let's prevent these genpds from being powered-off until genpd_power_off_unused() gets called, which is a late_initcall_sync(). Note that, this still doesn't guarantee that all the consumer devices has been probed before we allow to power-off the genpds. Yet, this should be a step in the right direction. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-22-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Default to use of_genpd_sync_state() for genpd providersUlf Hansson
Unless the typical platform driver that act as genpd provider, has its own ->sync_state() callback implemented let's default to use of_genpd_sync_state(). More precisely, while adding a genpd OF provider let's assign the ->sync_state() callback, in case the fwnode has a device and its driver doesn't have the ->sync_state() set already. In this way the typical platform driver doesn't need to assign ->sync_state(), unless it has some additional things to manage beyond genpds. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-21-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add common ->sync_state() support for genpd providersUlf Hansson
If the genpd provider's fwnode doesn't have an associated struct device with it, we can make use of the generic genpd->dev and it corresponding driver internally in genpd to manage ->sync_state(). More precisely, while adding a genpd OF provider let's check if the fwnode has a device and if not, make the preparation to handle ->sync_state() internally through the genpd_provider_driver and the genpd_provider_bus. Note that, genpd providers may opt out from this behaviour by setting the GENPD_FLAG_NO_SYNC_STATE config options for the genpds in question. Suggested-by: Saravana Kannan <saravanak@google.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-19-ulf.hansson@linaro.org
2025-07-09driver core: Export get_dev_from_fwnode()Ulf Hansson
It has turned out get_dev_from_fwnode() is useful at a few other places outside of the driver core, as in gpiolib.c for example. Therefore let's make it available as a common helper function. Suggested-by: Saravana Kannan <saravanak@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-18-ulf.hansson@linaro.org
2025-07-09firmware: xilinx: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-17-ulf.hansson@linaro.org
2025-07-09firmware: xilinx: Don't share zynqmp_pm_init_finalize()Ulf Hansson
As there no longer any users outside the zynqmp firmware driver of zynqmp_pm_init_finalize(), let's turn into a local static function. Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-16-ulf.hansson@linaro.org
2025-07-09firmware/pmdomain: xilinx: Move ->sync_state() support to firmware driverUlf Hansson
Rather than having the genpd provider to add device_links for each device that gets attached, to implement the ->sync_state() support, let's rely on fw_devlink to do this for us. In this way, we can simplify the code by moving the ->sync_state() callback into the firmware driver, so let's do that. Cc: Michael Tretter <m.tretter@pengutronix.de> Cc: Michal Simek <michal.simek@amd.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-15-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmhpd: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Bjorn Andersson <andersson@kernel.org> Cc: Konrad Dybcio <konradybcio@kernel.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-14-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmpd: Use of_genpd_sync_state()Ulf Hansson
To make sure genpd tries to power off unused PM domains, let's call of_genpd_sync_state() from our own ->sync_state() callback. Cc: Bjorn Andersson <andersson@kernel.org> Cc: Konrad Dybcio <konradybcio@kernel.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-13-ulf.hansson@linaro.org
2025-07-09cpuidle: riscv-sbi: Opt-out from genpd's common ->sync_state() supportUlf Hansson
The riscv-sbi-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Cc: Anup Patel <anup@brainfault.org> Cc: linux-riscv@lists.infradead.org Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-12-ulf.hansson@linaro.org
2025-07-09cpuidle: psci: Opt-out from genpd's common ->sync_state() supportUlf Hansson
The cpuidle-psci-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-11-ulf.hansson@linaro.org
2025-07-09soc/tegra: pmc: Opt-out from genpd's common ->sync_state() supportUlf Hansson
Tegra implements its own specific ->sync_state() callback for the genpd providers. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-10-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Export a common ->sync_state() helper for genpd providersUlf Hansson
In some cases the typical platform driver that act as genpd provider, may need its own ->sync_state() callback to manage various things. In this regards, the provider most likely wants to allow its corresponding genpds to be powered-off. For this reason, let's introduce a new genpd helper function, of_genpd_sync_state() that helps genpd provider drivers to achieve this. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-8-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add the genpd->dev to the genpd provider busUlf Hansson
To take the next step for a more common handling of the genpd providers, let's add the genpd->dev to the genpd provider bus when registering a genpd OF provider. Also note, to allow us to add devices to the genpd provider bus we need to make sure the bus has been registered first, which is done via a core_initcall. Hence, calls to of_genpd_add_provider_simple|onecell() must be done after the bus has been registered, else they will fail. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-7-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Add a bus and a driver for genpd providersUlf Hansson
When we create a genpd via pm_genpd_init() we are initializing a corresponding struct device for it, but we don't add the device to any bus_type. It has not really been needed as the device is used as cookie to help us manage OPP tables. However, to prepare to make better use of the device, let's add a new genpd provider bus_type and a corresponding genpd provider driver. Subsequent changes will make use of this. Suggested-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Tested-by: Hiago De Franco <hiago.franco@toradex.com> # Colibri iMX8X Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> # TI AM62A,Xilinx ZynqMP ZCU106 Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-6-ulf.hansson@linaro.org
2025-07-09pmdomain: core: Prevent registering devices before the busUlf Hansson
We must not register a consumer device to the genpd bus, before registering the bus itself. Even if this doesn't seem to be an issue, let's add a simple check to make sure we really avoid this from happening. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-5-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rcar-gen4-sysc: Move init to postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's move to a postcore_initcall. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-4-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rmobile-sysc: Move init to postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's move to a postcore_initcall. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-3-ulf.hansson@linaro.org
2025-07-09pmdomain: renesas: rcar-sysc: Add genpd OF provider at postcore_initcallUlf Hansson
Subsequent changes to genpd adds a limitation that registering a genpd OF providers must be done after its bus registration, which is at core_initcall. To adopt to this, let's split the initialization into two steps. The first part keep registering the PM domains with genpd at early_initcall, as this is needed to bringup the CPUs for R-Car H1, by calling rcar_sysc_power_up_cpu(). The second and new part, moves the registration of the genpd OF provider to a postcore_initcall(). Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20250701114733.636510-2-ulf.hansson@linaro.org
2025-07-09pmdomain: qcom: rpmhpd: Add Milos power domainsLuca Weiss
Add the power domains exposed by RPMH in the Qualcomm Milos platform. Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250707-sm7635-rpmhpd-v2-2-b4aa37acb065@fairphone.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09staging: gpib: Fix error handling paths in cb_gpib_probe()Christophe JAILLET
If cb_gpib_config() fails, 'info' needs to be freed, as already done in the remove function. While at it, remove a pointless comment related to gpib_attach(). Fixes: e9dc69956d4d ("staging: gpib: Add Computer Boards GPIB driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/bf89d6f2f8b8c680720d02061fc4ebdd805deca8.1751709098.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09staging: gpib: lpvo_usb_gpib: Remove unreachable return statementHarshit Mogalapalli
usb_gpib_read() has a return statement after if else which is unreachable, clean this up. Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Link: https://lore.kernel.org/r/20250703070542.1957371-1-harshit.m.mogalapalli@oracle.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09staging: gpib: cec: Fix inconsistent indentation in cec_pci_attach()Harshit Mogalapalli
This is a cleanup which fixes inconsistent indentation. This is found with smatch. drivers/staging/gpib/cec/cec_gpib.c:305 cec_pci_attach() warn: inconsistent indenting Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Link: https://lore.kernel.org/r/20250703065224.1956688-1-harshit.m.mogalapalli@oracle.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09staging: gpib: Fix error code in board_type_ioctl()Harshit Mogalapalli
When copy_from_user() fails it return number of bytes it wasn't able to copy. So the correct return value when copy_from_user() fails is -EFAULT. Fixes: 9dde4559e939 ("staging: gpib: Add GPIB common core driver") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Link: https://lore.kernel.org/r/20250703064633.1955893-1-harshit.m.mogalapalli@oracle.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09staging: fbtft: cleanup error handling in fbtft_framebuffer_alloc()Abdun Nihaal
The error handling in fbtft_framebuffer_alloc() mixes managed allocation and plain allocation, and performs error handling in an order different from the order in fbtft_framebuffer_release(). Fix them by moving vmem allocation closer to where it is used, and using plain kzalloc() for txbuf allocation. Also remove the duplicate call to fb_deferred_io_cleanup(). Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Suggested-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20250701164537.243282-1-abdun.nihaal@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09pmdomain: amlogic: Constify struct meson_secure_pwrc_domain_dataChristophe JAILLET
'struct meson_secure_pwrc_domain_data' are not modified in these drivers. Constifying these structures moves some data to a read-only section, so increases overall security. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 9248 408 0 9656 25b8 drivers/pmdomain/amlogic/meson-secure-pwrc.o After: ===== text data bss dec hex filename 9344 304 0 9648 25b0 drivers/pmdomain/amlogic/meson-secure-pwrc.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e71abd8d75dd842690e5a11e38037bcf5feac189.1751816732.git.christophe.jaillet@wanadoo.fr Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: renesas: sort Renesas Kconfig configsKuninori Morimoto
Renesas Kconfig is using "SoC chip number" for CONFIG symbol, but is using "SoC chip name" for menu description. Because of it, it looks random order when we run "make menuconfig". commit 6d5aded8d57f ("soc: renesas: Sort driver description title") sorted Renesas Kconfig by "menu description title order" (= SoC chip name), but it makes confusable to add new config, because developer usually checks CONFIG symbols (= SoC chip number). Let's indicate both "SoC chip number" and "SoC chip name" in description and sort it again. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87ikkacacf.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: renesas: use menu for RenesasKuninori Morimoto
Current Renesas PM Domains appears on top page. Let's create new menu for Renesas. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87jz4qcacr.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09pmdomain: Merge branch fixes into nextUlf Hansson
Merge the pmdomain fixes for v6.16-rc[n] into the next branch, to allow them to get tested together with the new changes that are targeted for v6.17. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09Merge tag 'usb-serial-6.16-rc6' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB serial device id for 6.16-rc6 Here's a new modem device id. Everything has been in linux-next with no reported issues. * tag 'usb-serial-6.16-rc6' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: add Foxconn T99W640
2025-07-09efi: add ovmf debug log driverGerd Hoffmann
Recent OVMF versions (edk2-stable202508 + newer) can write their debug log to a memory buffer. This driver exposes the log content via sysfs (/sys/firmware/efi/ovmf_debug_log). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-07-09dma-buf: heaps: Give default CMA heap a fixed nameJared Kangas
The CMA heap's name in devtmpfs can vary depending on how the heap is defined. Its name defaults to "reserved", but if a CMA area is defined in the devicetree, the heap takes on the devicetree node's name, such as "default-pool" or "linux,cma". To simplify naming, unconditionally name it "default_cma_region", but keep a legacy node in place backed by the same underlying allocator for backwards compatibility. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jared Kangas <jkangas@redhat.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://lore.kernel.org/r/20250610131231.1724627-4-jkangas@redhat.com
2025-07-09dma-buf: heaps: Parameterize heap name in __add_cma_heap()Jared Kangas
Prepare for the introduction of a fixed-name CMA heap by replacing the unused void pointer parameter in __add_cma_heap() with the heap name. Reviewed-by: Maxime Ripard <mripard@kernel.org> Acked-by: John Stultz <jstultz@google.com> Signed-off-by: Jared Kangas <jkangas@redhat.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://lore.kernel.org/r/20250610131231.1724627-3-jkangas@redhat.com
2025-07-09dma-buf: system_heap: No separate allocation for attachment sg_tablesT.J. Mercier
struct dma_heap_attachment is a separate allocation from the struct sg_table it contains, but there is no reason for this. Let's use the slab allocator just once instead of twice for dma_heap_attachment. Signed-off-by: T.J. Mercier <tjmercier@google.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://lore.kernel.org/r/20250417180943.1559755-1-tjmercier@google.com
2025-07-09pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_govMaulik Shah
pm_domain_cpu_gov is selecting a cluster idle state but does not consider latency tolerance of child CPUs. This results in deeper cluster idle state whose latency does not meet latency tolerance requirement. Select deeper idle state only if global and device latency tolerance of all child CPUs meet. Test results on SM8750 with 300 usec PM-QoS on CPU0 which is less than domain idle state entry (2150) + exit (1983) usec latency mentioned in devicetree, demonstrate the issue. # echo 300 > /sys/devices/system/cpu/cpu0/power/pm_qos_resume_latency_us Before: (Usage is incrementing) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 29817 537 8 270 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 30348 542 8 271 0 After: (Usage is not incrementing due to latency tolerance) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com> Fixes: e94999688e3a ("PM / Domains: Add genpd governor for CPUs") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250709-pmdomain_qos-v2-1-976b12257899@oss.qualcomm.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-07-09media: stk1160: use usb_alloc_noncoherent/usb_free_noncoherent()Xu Yang
This will use USB noncoherent API to alloc/free urb buffers, then stk1160 driver needn't to do dma sync operations by itself. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Reviewed-by: Hans de Goede <hansg@kernel.org> Link: https://lore.kernel.org/r/20250704095751.73765-4-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09media: uvcvideo: use usb_alloc_noncoherent/usb_free_noncoherent()Xu Yang
This will use USB noncoherent API to alloc/free urb buffers, then uvc driver needn't to do dma sync operations by itself. Reviewed-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Reviewed-by: Hans de Goede <hansg@kernel.org> Link: https://lore.kernel.org/r/20250704095751.73765-3-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09usb: core: add dma-noncoherent buffer alloc and free APIXu Yang
This will add usb_alloc_noncoherent() and usb_free_noncoherent() functions to support alloc and free buffer in a dma-noncoherent way. To explicit manage the memory ownership for the kernel and device, this will also add usb_dma_noncoherent_sync_for_cpu/device() functions and call it at proper time. The management requires the user save sg_table returned by usb_alloc_noncoherent() to urb->sgt. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250704095751.73765-2-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09usb: gadget: configfs: Fix OOB read on empty string writeXinyu Liu
When writing an empty string to either 'qw_sign' or 'landingPage' sysfs attributes, the store functions attempt to access page[l - 1] before validating that the length 'l' is greater than zero. This patch fixes the vulnerability by adding a check at the beginning of os_desc_qw_sign_store() and webusb_landingPage_store() to handle the zero-length input case gracefully by returning immediately. Signed-off-by: Xinyu Liu <katieeliu@tencent.com> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/tencent_B1C9481688D0E95E7362AB2E999DE8048207@qq.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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