| Age | Commit message (Collapse) | Author |
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Follow up patches will need the engine masks for VCS and VECS engines.
Since we already have a macro for the CCS engines, just extend the same
approach to all classes.
To avoid confusion with the XE_HW_ENGINE_*_MASK masks, the new macros
use the _INSTANCES suffix instead. For consistency, rename CCS_MASK to
CCS_INSTANCES as well.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251218223846.1146344-15-daniele.ceraolospurio@intel.com
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When sun4i_spdif_quirks was recently expanded, the kerneldoc covering
the structure was not expanded to match. This ends up causing a warning
when the documents are built.
Add the missing fields.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501311953.0Ox9CW5w-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202503060947.QKUUR62l-lkp@intel.com/
Fixes: 0a2319308de8 ("ASoC: sun4i-spdif: Add clock multiplier settings")
Fixes: 4a5ac6cd05a7 ("ASoC: sun4i-spdif: Support SPDIF output on A523 family")
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
Reviewed-by: Marcus Cooper <codekipper@gmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251221035715.1722584-1-wens@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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A recent change fixed a couple of device leaks on component bind failure
and on unbind but did so in a confusing way by adding misleading
initialisations at bind() and bogus NULL checks at unbind().
Cc: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20251219142412.19043-1-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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1488 | "realtek/rt1320/rt1320_%s_%s_%s.dat", vendor, product, sku);
| ^~ ~~~~~~
sound/soc/codecs/rt1320-sdw.c:1487:17: note: 'snprintf' output between 29 and 410 bytes into a destination of size 128
1487 | snprintf(filename, sizeof(filename),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1488 | "realtek/rt1320/rt1320_%s_%s_%s.dat", vendor, product, sku);
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Fixes: da1682d5e8b5 ("ASoC: rt1320: support calibration and temperature/r0 loading")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512191521.RK0edKdX-lkp@intel.com/
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://patch.msgid.link/20251222101329.558973-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fix from Marek Szyprowski:
- fix boot failure of parisc systems after recent rework of the DMA API
infrastructure (Leon Romanovsky)
* tag 'dma-mapping-6.19-2025-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
parisc: Set valid bit in high byte of 64‑bit physical address
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This reverts commit 8d3bf19f1b585a3cc0027f508b64c33484db8d0d.
While this fake hotplugging was a nice idea, it has shown that this feature
does not handle PCIe switches correctly:
pci_bus 0004:43: busn_res: can not insert [bus 43-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:43: busn_res: [bus 43-41] end is updated to 43
pci_bus 0004:43: busn_res: can not insert [bus 43] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:00.0: devices behind bridge are unusable because [bus 43] cannot be assigned for them
pci_bus 0004:44: busn_res: can not insert [bus 44-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:44: busn_res: [bus 44-41] end is updated to 44
pci_bus 0004:44: busn_res: can not insert [bus 44] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:02.0: devices behind bridge are unusable because [bus 44] cannot be assigned for them
pci_bus 0004:45: busn_res: can not insert [bus 45-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:45: busn_res: [bus 45-41] end is updated to 45
pci_bus 0004:45: busn_res: can not insert [bus 45] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:06.0: devices behind bridge are unusable because [bus 45] cannot be assigned for them
pci_bus 0004:46: busn_res: can not insert [bus 46-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:46: busn_res: [bus 46-41] end is updated to 46
pci_bus 0004:46: busn_res: can not insert [bus 46] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:0e.0: devices behind bridge are unusable because [bus 46] cannot be assigned for them
pci_bus 0004:42: busn_res: [bus 42-41] end is updated to 46
pci_bus 0004:42: busn_res: can not insert [bus 42-46] under [bus 41] (conflicts with (null) [bus 41])
pci 0004:41:00.0: devices behind bridge are unusable because [bus 42-46] cannot be assigned for them
pcieport 0004:40:00.0: bridge has subordinate 41 but max busn 46
During the initial scan, PCI core doesn't see the switch and since the Root
Port is not hot plug capable, the secondary bus number gets assigned as the
subordinate bus number. This means, the PCI core assumes that only one bus
will appear behind the Root Port since the Root Port is not hot plug
capable.
This works perfectly fine for PCIe endpoints connected to the Root Port,
since they don't extend the bus. However, if a PCIe switch is connected,
then there is a problem when the downstream busses starts showing up and
the PCI core doesn't extend the subordinate bus number and bridge resources
after initial scan during boot.
So revert the change that skipped dw_pcie_wait_for_link() if the Link up
IRQ was used by a vendor glue driver.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-14-cassel@kernel.org
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'global_irq' interrupt"
This reverts commit 4581403f67929d02c197cb187c4e1e811c9e762a.
While this fake hotplugging was a nice idea, it has shown that this feature
does not handle PCIe switches correctly:
pci_bus 0004:43: busn_res: can not insert [bus 43-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:43: busn_res: [bus 43-41] end is updated to 43
pci_bus 0004:43: busn_res: can not insert [bus 43] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:00.0: devices behind bridge are unusable because [bus 43] cannot be assigned for them
pci_bus 0004:44: busn_res: can not insert [bus 44-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:44: busn_res: [bus 44-41] end is updated to 44
pci_bus 0004:44: busn_res: can not insert [bus 44] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:02.0: devices behind bridge are unusable because [bus 44] cannot be assigned for them
pci_bus 0004:45: busn_res: can not insert [bus 45-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:45: busn_res: [bus 45-41] end is updated to 45
pci_bus 0004:45: busn_res: can not insert [bus 45] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:06.0: devices behind bridge are unusable because [bus 45] cannot be assigned for them
pci_bus 0004:46: busn_res: can not insert [bus 46-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:46: busn_res: [bus 46-41] end is updated to 46
pci_bus 0004:46: busn_res: can not insert [bus 46] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:0e.0: devices behind bridge are unusable because [bus 46] cannot be assigned for them
pci_bus 0004:42: busn_res: [bus 42-41] end is updated to 46
pci_bus 0004:42: busn_res: can not insert [bus 42-46] under [bus 41] (conflicts with (null) [bus 41])
pci 0004:41:00.0: devices behind bridge are unusable because [bus 42-46] cannot be assigned for them
pcieport 0004:40:00.0: bridge has subordinate 41 but max busn 46
During the initial scan, PCI core doesn't see the switch and since the Root
Port is not hot plug capable, the secondary bus number gets assigned as the
subordinate bus number. This means, the PCI core assumes that only one bus
will appear behind the Root Port since the Root Port is not hot plug
capable.
This works perfectly fine for PCIe endpoints connected to the Root Port,
since they don't extend the bus. However, if a PCIe switch is connected,
then there is a problem when the downstream busses starts showing up and
the PCI core doesn't extend the subordinate bus number and bridge resources
after initial scan during boot.
The long term plan is to migrate this driver to the upcoming pwrctrl APIs
that are supposed to handle this problem elegantly.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-13-cassel@kernel.org
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IRQ' is supported"
This reverts commit ba4a2e2317b9faeca9193ed6d3193ddc3cf2aba3.
Since the Link up IRQ support is going away, revert the MSI logic that got
added for it too.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
[mani: reworded the description]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-12-cassel@kernel.org
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This reverts commit 36971d6c5a9a134c15760ae9fd13c6d5f9a36abb.
While this fake hotplugging was a nice idea, it has shown that this feature
does not handle PCIe switches correctly:
pci_bus 0004:43: busn_res: can not insert [bus 43-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:43: busn_res: [bus 43-41] end is updated to 43
pci_bus 0004:43: busn_res: can not insert [bus 43] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:00.0: devices behind bridge are unusable because [bus 43] cannot be assigned for them
pci_bus 0004:44: busn_res: can not insert [bus 44-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:44: busn_res: [bus 44-41] end is updated to 44
pci_bus 0004:44: busn_res: can not insert [bus 44] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:02.0: devices behind bridge are unusable because [bus 44] cannot be assigned for them
pci_bus 0004:45: busn_res: can not insert [bus 45-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:45: busn_res: [bus 45-41] end is updated to 45
pci_bus 0004:45: busn_res: can not insert [bus 45] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:06.0: devices behind bridge are unusable because [bus 45] cannot be assigned for them
pci_bus 0004:46: busn_res: can not insert [bus 46-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:46: busn_res: [bus 46-41] end is updated to 46
pci_bus 0004:46: busn_res: can not insert [bus 46] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:0e.0: devices behind bridge are unusable because [bus 46] cannot be assigned for them
pci_bus 0004:42: busn_res: [bus 42-41] end is updated to 46
pci_bus 0004:42: busn_res: can not insert [bus 42-46] under [bus 41] (conflicts with (null) [bus 41])
pci 0004:41:00.0: devices behind bridge are unusable because [bus 42-46] cannot be assigned for them
pcieport 0004:40:00.0: bridge has subordinate 41 but max busn 46
During the initial scan, PCI core doesn't see the switch and since the Root
Port is not hot plug capable, the secondary bus number gets assigned as the
subordinate bus number. This means, the PCI core assumes that only one bus
will appear behind the Root Port since the Root Port is not hot plug
capable.
This works perfectly fine for PCIe endpoints connected to the Root Port,
since they don't extend the bus. However, if a PCIe switch is connected,
then there is a problem when the downstream busses starts showing up and
the PCI core doesn't extend the subordinate bus number and bridge resources
after initial scan during boot.
The long term plan is to migrate this driver to the upcoming pwrctrl APIs
that are supposed to handle this problem elegantly.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-11-cassel@kernel.org
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This reverts commit 0e0b45ab5d770a748487ba0ae8f77d1fb0f0de3e.
While this fake hotplugging was a nice idea, it has shown that this feature
does not handle PCIe switches correctly:
pci_bus 0004:43: busn_res: can not insert [bus 43-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:43: busn_res: [bus 43-41] end is updated to 43
pci_bus 0004:43: busn_res: can not insert [bus 43] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:00.0: devices behind bridge are unusable because [bus 43] cannot be assigned for them
pci_bus 0004:44: busn_res: can not insert [bus 44-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:44: busn_res: [bus 44-41] end is updated to 44
pci_bus 0004:44: busn_res: can not insert [bus 44] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:02.0: devices behind bridge are unusable because [bus 44] cannot be assigned for them
pci_bus 0004:45: busn_res: can not insert [bus 45-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:45: busn_res: [bus 45-41] end is updated to 45
pci_bus 0004:45: busn_res: can not insert [bus 45] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:06.0: devices behind bridge are unusable because [bus 45] cannot be assigned for them
pci_bus 0004:46: busn_res: can not insert [bus 46-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:46: busn_res: [bus 46-41] end is updated to 46
pci_bus 0004:46: busn_res: can not insert [bus 46] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:0e.0: devices behind bridge are unusable because [bus 46] cannot be assigned for them
pci_bus 0004:42: busn_res: [bus 42-41] end is updated to 46
pci_bus 0004:42: busn_res: can not insert [bus 42-46] under [bus 41] (conflicts with (null) [bus 41])
pci 0004:41:00.0: devices behind bridge are unusable because [bus 42-46] cannot be assigned for them
pcieport 0004:40:00.0: bridge has subordinate 41 but max busn 46
During the initial scan, PCI core doesn't see the switch and since the Root
Port is not hot plug capable, the secondary bus number gets assigned as the
subordinate bus number. This means, the PCI core assumes that only one bus
will appear behind the Root Port since the Root Port is not hot plug
capable.
This works perfectly fine for PCIe endpoints connected to the Root Port,
since they don't extend the bus. However, if a PCIe switch is connected,
then there is a problem when the downstream busses starts showing up and
the PCI core doesn't extend the subordinate bus number and bridge resources
after initial scan during boot.
The long term plan is to migrate this driver to the upcoming pwrctrl APIs
that are supposed to handle this problem elegantly.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-10-cassel@kernel.org
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This reverts commit ec9fd499b9c60a187ac8d6414c3c343c77d32e42.
While this fake hotplugging was a nice idea, it has shown that this feature
does not handle PCIe switches correctly:
pci_bus 0004:43: busn_res: can not insert [bus 43-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:43: busn_res: [bus 43-41] end is updated to 43
pci_bus 0004:43: busn_res: can not insert [bus 43] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:00.0: devices behind bridge are unusable because [bus 43] cannot be assigned for them
pci_bus 0004:44: busn_res: can not insert [bus 44-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:44: busn_res: [bus 44-41] end is updated to 44
pci_bus 0004:44: busn_res: can not insert [bus 44] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:02.0: devices behind bridge are unusable because [bus 44] cannot be assigned for them
pci_bus 0004:45: busn_res: can not insert [bus 45-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:45: busn_res: [bus 45-41] end is updated to 45
pci_bus 0004:45: busn_res: can not insert [bus 45] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:06.0: devices behind bridge are unusable because [bus 45] cannot be assigned for them
pci_bus 0004:46: busn_res: can not insert [bus 46-41] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci_bus 0004:46: busn_res: [bus 46-41] end is updated to 46
pci_bus 0004:46: busn_res: can not insert [bus 46] under [bus 42-41] (conflicts with (null) [bus 42-41])
pci 0004:42:0e.0: devices behind bridge are unusable because [bus 46] cannot be assigned for them
pci_bus 0004:42: busn_res: [bus 42-41] end is updated to 46
pci_bus 0004:42: busn_res: can not insert [bus 42-46] under [bus 41] (conflicts with (null) [bus 41])
pci 0004:41:00.0: devices behind bridge are unusable because [bus 42-46] cannot be assigned for them
pcieport 0004:40:00.0: bridge has subordinate 41 but max busn 46
During the initial scan, PCI core doesn't see the switch and since the Root
Port is not hot plug capable, the secondary bus number gets assigned as the
subordinate bus number. This means, the PCI core assumes that only one bus
will appear behind the Root Port since the Root Port is not hot plug
capable.
This works perfectly fine for PCIe endpoints connected to the Root Port,
since they don't extend the bus. However, if a PCIe switch is connected,
then there is a problem when the downstream busses starts showing up and
the PCI core doesn't extend the subordinate bus number and bridge resources
after initial scan during boot.
The long term plan is to migrate this driver to the upcoming pwrctrl APIs
that are supposed to handle this problem elegantly.
Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251222064207.3246632-9-cassel@kernel.org
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-tyr-v1-1-d88ff1a54ae9@gmail.com
[ Change commit subject prefix to 'drm: tyr:'. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with device_get_match_data().
While changing the error message, switch to dev_err_probe() so error
path is a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251219-gpio-of-match-v3-3-6b84194a02a8@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with device_get_match_data().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251219-gpio-of-match-v3-2-6b84194a02a8@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with device_get_match_data().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251219-gpio-of-match-v3-1-6b84194a02a8@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-nova-v1-1-0e2353d5debe@gmail.com
[ Use 'nova' commit subject prefix; use kernel vertical import style.
- Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-pci-v1-1-a0397c61bbe4@gmail.com
[ Use kernel vertical import style. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Fix kernel-doc comments to prevent kernel-doc warnings:
Warning: include/linux/moduleparam.h:364 function parameter 'arg' not
described in '__core_param_cb'
Warning: include/linux/moduleparam.h:395 No description found for return
value of 'parameq'
Warning: include/linux/moduleparam.h:405 No description found for return
value of 'parameqn'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
[Sami: Clarified the commit message]
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Currently if set_module_sig_enforced is called with CONFIG_MODULE_SIG=n
e.g. [1], it can lead to a linking error,
ld: security/integrity/ima/ima_appraise.o: in function `ima_appraise_measurement':
security/integrity/ima/ima_appraise.c:587:(.text+0xbbb): undefined reference to `set_module_sig_enforced'
This happens because the actual implementation of
set_module_sig_enforced comes from CONFIG_MODULE_SIG but both the
function declaration and the empty stub definition are tied to
CONFIG_MODULES.
So bind set_module_sig_enforced to CONFIG_MODULE_SIG instead. This
allows (future) users to call set_module_sig_enforced directly without
the "if IS_ENABLED(CONFIG_MODULE_SIG)" safeguard.
Note this issue hasn't caused a real problem because all current callers
of set_module_sig_enforced e.g. security/integrity/ima/ima_efi.c
use "if IS_ENABLED(CONFIG_MODULE_SIG)" safeguard.
[1] https://lore.kernel.org/lkml/20250928030358.3873311-1-coxu@redhat.com/
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510030029.VRKgik99-lkp@intel.com/
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Coiby Xu <coxu@redhat.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Replace open-coded allocate/copy with kvrealloc().
Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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We have interchangeably used unsigned long for some of the types
defined in elfutils, assuming they're always 64-bit. This obviously
fails when building gendwarfksyms on 32-bit hosts. Fix the types.
Reported-by: Michal Suchánek <msuchanek@suse.de>
Closes: https://lore.kernel.org/linux-modules/aRcxzPxtJblVSh1y@kitsune.suse.cz/
Tested-by: Michal Suchánek <msuchanek@suse.de>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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The USE_PKCS7 code in sign-file utilizes PKCS7_sign(), which allows signing
only with SHA-1. Since SHA-1 support for module signing has been removed,
drop the use of the OpenSSL PKCS7 API by the tool in favor of using only
the newer CMS API.
The use of the PKCS7 API is selected by the following:
#if defined(LIBRESSL_VERSION_NUMBER) || \
OPENSSL_VERSION_NUMBER < 0x10000000L || \
defined(OPENSSL_NO_CMS)
#define USE_PKCS7
#endif
Looking at the individual ifdefs:
* LIBRESSL_VERSION_NUMBER: LibreSSL added the CMS API implementation from
OpenSSL in 3.1.0, making the ifdef no longer relevant. This version was
released on April 8, 2020.
* OPENSSL_VERSION_NUMBER < 0x10000000L: OpenSSL 1.0.0 was released on March
29, 2010. Supporting earlier versions should no longer be necessary. The
file Documentation/process/changes.rst already states that at least
version 1.0.0 is required to build the kernel.
* OPENSSL_NO_CMS: OpenSSL can be configured with "no-cms" to disable CMS
support. In this case, sign-file will no longer be usable. The CMS API
support is now required.
In practice, since distributions now typically sign modules with SHA-2, for
which sign-file already required CMS API support, removing the USE_PKCS7
code shouldn't cause any issues.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
[Sami: Used Petr's updated commit message]
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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SHA-1 is considered deprecated and insecure due to vulnerabilities that can
lead to hash collisions. Most distributions have already been using SHA-2
for module signing because of this. The default was also changed last year
from SHA-1 to SHA-512 in commit f3b93547b91a ("module: sign with sha512
instead of sha1 by default"). This was not reported to cause any issues.
Therefore, it now seems to be a good time to remove SHA-1 support for
module signing.
Commit 16ab7cb5825f ("crypto: pkcs7 - remove sha1 support") previously
removed support for reading PKCS#7/CMS signed with SHA-1, along with the
ability to use SHA-1 for module signing. This change broke iwd and was
subsequently completely reverted in commit 203a6763ab69 ("Revert "crypto:
pkcs7 - remove sha1 support""). However, dropping only the support for
using SHA-1 for module signing is unrelated and can still be done
separately.
Note that this change only removes support for new modules to be SHA-1
signed, but already signed modules can still be loaded.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistency cannot be addressed without refactoring the API.
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")
Switch to using system_dfl_wq, the new unbound workqueue, because the
users do not benefit from a per-cpu workqueue.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Remove the custom __modinit macro from kernel/params.c and instead use the
common __init_or_module macro from include/linux/module.h. Both provide the
same functionality.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Remove the __INIT_OR_MODULE, __INITDATA_OR_MODULE and
__INITRODATA_OR_MODULE macros. These were introduced in commit 8b5a10fc6fd0
("x86: properly annotate alternatives.c"). Only __INITRODATA_OR_MODULE was
ever used, in arch/x86/kernel/alternative.c. In 2011, commit dc326fca2b64
("x86, cpu: Clean up and unify the NOP selection infrastructure") removed
this usage.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Add myself as a maintainer for module support as I'll be handling pull
requests for the next six months according to the previously announced
rotation [1][2]. Also, update the git repository link to point to the
modules tree, which is already used by linux-next.
Link: https://lore.kernel.org/linux-modules/Z3gDAnPlA3SZEbgl@bombadil.infradead.org [1]
Link: https://lore.kernel.org/linux-modules/20251203234840.3720-1-da.gomez@kernel.org/ [2]
Acked-by: Daniel Gomez <da.gomez@samsung.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-7-1142a177d0fd@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-6-1142a177d0fd@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-5-1142a177d0fd@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-4-1142a177d0fd@gmail.com
[ Use kernel vertical import style. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-3-1142a177d0fd@gmail.com
[ Use kernel vertical import style; discard unrelated faux changes.
- Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-2-1142a177d0fd@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-driver-core-v1-1-1142a177d0fd@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Convert all imports in the debugfs Rust module to use "kernel vertical"
style.
With this subsequent patches neither introduce unrelated changes nor
leave an inconsistent import pattern.
While at it, drop unnecessary imports covered by prelude::*.
Link: https://docs.kernel.org/rust/coding-guidelines.html#imports
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20251218165626.450264-1-dakr@kernel.org
[ Apply the same change to the debugfs sample code. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Document how the new field is used, maximum value and the interaction
with SYNC timestamps.
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-13-4d319764cc58@linaro.org
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'timestamp' is currently 1 bit wide for on/off. To enable setting
different intervals, extend it to 4 bits wide. Keep the old bit position
for backward compatibility ("deprecated_timestamp") but don't publish in
the format/ folder. It will be removed from the documentation and can be
removed completely after enough time has passed.
ETM3x doesn't support different intervals, so validate that the value is
either 0 or 1.
Tools that read the bit positions from the format/ folder will continue
to work as before, setting either 0 or 1 for off/on. Tools that
incorrectly didn't do this and set the ETM_OPT_TS bit directly will also
continue to work because that old bit is still checked.
This avoids adding a second timestamp attribute for setting the
interval. This would be awkward to use because tools would have to be
updated to ensure that the timestamps are always enabled when an
interval is set, and the driver would have to validate that both options
are provided together. All this does is implement the semantics of a
single enum but spread over multiple fields.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Jie Gan <jie.gan@oss.qualcomm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-12-4d319764cc58@linaro.org
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Timestamps are currently emitted at the maximum rate possible, which is
much too frequent for most use cases. In the next commit, the timestamp
field will be widened to take a value, so set the interval using the
value now. Granular control is not required, so save space in the config
by interpreting it as 2 ^ timestamp. And then 4 bits (0 - 15) will be
enough to set the interval to be larger than the existing SYNC timestamp
interval.
No sysfs mode support is needed for this attribute because counter
generated timestamps are only configured for Perf mode.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-11-4d319764cc58@linaro.org
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ETM_OPT_* definitions duplicate the PMU format attributes that have
always been published in sysfs. Hardcoding them here makes it misleading
as to what the 'real' PMU API is and prevents attributes from being
rearranged in the future.
ETM4_CFG_BIT_* definitions just define what the Arm Architecture is
which is not the responsibility of the kernel to do and doesn't scale to
other registers or versions of ETM. It's not an actual software ABI/API
and these definitions here mislead that it is.
Any tools using the first ones would be broken anyway as they won't work
when attributes are moved, so removing them is the right thing to do and
will prompt a fix. Tools using the second ones can trivially redefine
them locally.
Perf also has its own copy of the headers so both of these things can be
fixed up at a later date.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-10-4d319764cc58@linaro.org
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Remove hard coded bitfield extractions and shifts and replace with
ATTR_CFG_GET_FLD().
ETM4_CFG_BIT_BB was defined to give the register bit positions to
userspace, TRCCONFIGR_BB should be used in the kernel so replace it.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-9-4d319764cc58@linaro.org
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The "config:" string construction in format_attr_contextid_show() can be
removed because it either showed the existing context1 or context2
formats which have already been generated, so can be called themselves.
The other conversions are straightforward replacements.
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-8-4d319764cc58@linaro.org
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config isn't the only field, there are also config1, config2, etc.
Rejecting unrecognized attributes is therefore inconsistent as it wasn't
done for all fields. It was only necessary when we were directly
programming attr->config into ETMCR and didn't hide the unsupported
fields, but now it's not needed so remove it.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-7-4d319764cc58@linaro.org
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Currently we're programming attr->config directly into ETMCR after some
validation. This obscures which fields are being used, and also makes it
impossible to move fields around or use other configN fields in the
future.
Improve it by only reading the fields that are valid and then setting
the appropriate ETMCR bits based on each one.
The ETMCR_CTXID_SIZE part can be removed as it was never a valid option
because it's not in ETM3X_SUPPORTED_OPTIONS.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-6-4d319764cc58@linaro.org
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This allows us to define and consume them in a unified way in later
commits.
A lot of the existing code has open coded bit shifts or direct usage of
whole config values which is error prone and hides which bits are in use
and which are free.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-5-4d319764cc58@linaro.org
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ETMv3 only has a few attributes, and setting unused ones results in an
error, so hide them to begin with.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-4-4d319764cc58@linaro.org
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Remove some of the magic numbers and try to clarify some of the
documentation so it's clearer how this sets up the timestamp interval.
Return errors directly instead of jumping to out and returning ret,
nothing needs to be cleaned up at the end and it only obscures the flow
and return value.
Add utilities for programming resource selectors that do compile time
checks for constants or WARN_ONs for non-constant values. FIELD_PREP
includes compile time checks so we only need to add an additional
BUILD_BUG_ON for resource == 0 in pair mode.
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-3-4d319764cc58@linaro.org
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Fix holes and convert the long list of bools to single bits to save
some space because there's one of these for each ETM.
Reviewed-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-2-4d319764cc58@linaro.org
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TRCSYNCPR.PERIOD is the only functional part of TRCSYNCPR and it only
has 5 valid bits so it can be stored in a u8.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251128-james-cs-syncfreq-v8-1-4d319764cc58@linaro.org
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C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Daniel Almeida <Daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-regulator-v1-1-430e3d517025@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Fix kernel-doc warnings in intel_vsec.h to eliminate all kernel-doc
warnings:
Warning: include/linux/intel_vsec.h:92 struct member 'read_telem' not
described in 'pmt_callbacks'
Warning: include/linux/intel_vsec.h:146 expecting prototype for struct
intel_sec_device. Prototype was for struct intel_vsec_device instead
Warning: include/linux/intel_vsec.h:146 struct member 'priv_data_size'
not described in 'intel_vsec_device'
In struct pmt_callbacks, correct the kernel-doc for @read_telem.
kernel-doc doesn't support documenting callback function parameters,
so drop the '@' signs on those and use "* *" to make them somewhat
readable in the produced documentation output.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251216063801.2896495-1-rdunlap@infradead.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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