This series fixes the current implementation by getting rid of the usage of __symbol_get which caused a compilation issue with CONFIG_MODULES disabled. On top of this, the usage of MODULE_ALIAS makes possible to add a new reset module without being obliged to update the framework. The new implementation relies on the reset module registering its reset function to the vfio-platform driver.
The series is available at https://git.linaro.org/people/eric.auger/linux.git/shortlog/refs/heads/v4.3-rc7-rework-v5 Best Regards Eric v4 -> v5: - no code change - only added Arnd's new R-b v3 -> v4: - Remove the EXPORT_SYMBOL_GPL(vfio_platform_calxedaxgmac_reset) later in [6/7], to keep the functionality working all along the series - Add Arnd R-b (I dared to keep them despite the above change) - vfio_platform_unregister_reset gets the reset function to do a double check on the compat and the function pointer too - __vfio_platform_register_reset turned to 'void' v2 -> v3: - use driver_mutex instead of reset_mutex - style fixes: single mutex_unlock - use static nodes; vfio_platform_register_reset now is a macro - vfio_platform_reset_private.h removed since reset_module_(un)register disappear. No use of symbol_get anymore. - new patch introducing vfio-platform-base - reset look-up moved back at vfio-platform probe time - new patch featuring dev_info/dev_warn v1 -> v2: * in vfio_platform_common.c: - move reset lookup at load time and put reset at release: this is to prevent a race between the 2 load module loads - reset_list becomes static - vfio_platform_register/unregister_reset take a const char * as compat - fix node link - remove old combo struct and cleanup proto of vfio_platform_get_reset - add mutex to protect the reset list * in calxeda xgmac reset module - introduce vfio_platform_reset_private.h - use module_vfio_reset_handler macro - do not export vfio_platform_calxedaxgmac_reset symbol anymore - add a pr_info to show the device is reset by vfio reset module Eric Auger (7): vfio: platform: introduce vfio-platform-base module vfio: platform: add capability to register a reset function vfio: platform: introduce module_vfio_reset_handler macro vfio: platform: reset: calxedaxgmac: add reset function registration vfio: platform: add compat in vfio_platform_device vfio: platform: use list of registered reset function vfio: platform: add dev_info on device reset drivers/vfio/platform/Makefile | 6 +- .../platform/reset/vfio_platform_calxedaxgmac.c | 5 +- drivers/vfio/platform/vfio_amba.c | 1 + drivers/vfio/platform/vfio_platform.c | 1 + drivers/vfio/platform/vfio_platform_common.c | 119 +++++++++++++++------ drivers/vfio/platform/vfio_platform_private.h | 40 ++++++- 6 files changed, 130 insertions(+), 42 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
