diff options
| author | Tom Rini <[email protected]> | 2026-01-09 09:08:18 -0600 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-01-09 10:19:57 -0600 |
| commit | 1bcb2fe324180d0a8cfbdb0511737eba1d5b8550 (patch) | |
| tree | 8b7449bae3c6c2202bab853f75813e9c43932bf1 /drivers/usb | |
| parent | cf51247c632fe6f1f6c29a6f7754b99915182142 (diff) | |
| parent | 217cf656e249f698d390a7d8eaf255eb1a6c0230 (diff) | |
Merge patch series "Enable / require DEVRES for devm_.alloc usage outside xPL"
Tom Rini <[email protected]> says:
As seen by a number of patches fixing memory leaks, U-Boot has a problem
with developer expectations around devm_kmalloc and friends. Namely,
whereas in Linux these memory allocations will be freed automatically in
most cases, in U-Boot this is only true if DEVRES is enabled. Now,
intentionally, in xPL phases, we do not (and do not offer as an option)
enabling DEVRES. However in full U-Boot this is left either to the user,
or some drivers have select'd DEVRES on their own. This inconsistency is
a problem. This series goes and deals with two small issues that were
shown by having all drivers that use devm_.alloc to allocate memory also
select DEVRES and then we make DEVRES no longer be a prompted option and
instead select'd as needed. We do not make this unconditional as it
would result in growing the resulting binary on the many platforms which
have no users of the devm_.alloc family of functions.
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/cdns3/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/host/Kconfig | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig index 1d5e4afac6c..7964f3f41d5 100644 --- a/drivers/usb/cdns3/Kconfig +++ b/drivers/usb/cdns3/Kconfig @@ -1,6 +1,7 @@ config USB_CDNS3 tristate "Cadence USB3 Dual-Role Controller" depends on USB_XHCI_HCD || USB_GADGET + select DEVRES help Say Y here if your system has a Cadence USB3 dual-role controller. It supports: Host-only, and Peripheral-only. diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 744dfa90463..27fcae54b22 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,6 +1,7 @@ config USB_DWC3 bool "DesignWare USB3 DRD Core Support" depends on USB_XHCI_HCD || USB_GADGET + select DEVRES help Say Y here if your system has a Dual Role SuperSpeed USB controller based on the DesignWare USB3 IP Core. diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 99f381db9f9..54df4264a44 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -367,6 +367,7 @@ config USB_OHCI_GENERIC config USB_OHCI_DA8XX bool "Support for da850 OHCI USB controller" depends on ARCH_DAVINCI + select DEVRES help Enable support for the da850 USB controller. |