Fenghua Yu c956be5641 dmaengine: idxd: Register dsa_bus_type before registering idxd sub-drivers ... [ Upstream commit 88928addee ] idxd sub-drivers belong to bus dsa_bus_type. Thus, dsa_bus_type must be registered in dsa bus init before idxd drivers can be registered. But the order is wrong when both idxd and idxd_bus are builtin drivers. In this case, idxd driver is compiled and linked before idxd_bus driver. Since the initcall order is determined by the link order, idxd sub-drivers are registered in idxd initcall before dsa_bus_type is registered in idxd_bus initcall. idxd initcall fails: [ 21.562803] calling idxd_init_module+0x0/0x110 @ 1 [ 21.570761] Driver 'idxd' was unable to register with bus_type 'dsa' because the bus was not initialized. [ 21.586475] initcall idxd_init_module+0x0/0x110 returned -22 after 15717 usecs [ 21.597178] calling dsa_bus_init+0x0/0x20 @ 1 To fix the issue, compile and link idxd_bus driver before idxd driver to ensure the right registration order. Fixes: d9e5481fca ("dmaengine: dsa: move dsa_bus_type out of idxd driver to standalone") Reported-by: Michael Prinke <michael.prinke@intel.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lijun Pan <lijun.pan@intel.com> Tested-by: Lijun Pan <lijun.pan@intel.com> Link: https://lore.kernel.org/r/20230924162232.1409454-1-fenghua.yu@intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-11-20 11:08:25 +01:00
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bus.c
cdev.c	dmaengine: idxd: Fix the error handling path in idxd_cdev_register()	2022-06-09 10:23:14 +02:00
compat.c
device.c	dmaengine: idxd: use spin_lock_irqsave before wait_event_lock_irq	2023-10-19 23:05:37 +02:00
dma.c	dmaengine: idxd: add missing callback function to support DMA_INTERRUPT	2022-06-14 18:36:28 +02:00
idxd.h	dmaengine: idxd: change bandwidth token to read buffers	2022-04-08 14:23:45 +02:00
init.c	dmaengine: idxd: Set traffic class values in GRPCFG on DSA 2.0	2023-03-10 09:39:34 +01:00
irq.c	dmaengine: idxd: fix calling wq quiesce inside spinlock	2021-12-22 09:32:38 +01:00
Makefile	dmaengine: idxd: Register dsa_bus_type before registering idxd sub-drivers	2023-11-20 11:08:25 +01:00
perfmon.c
perfmon.h
registers.h	dmaengine: idxd: change bandwidth token to read buffers	2022-04-08 14:23:45 +02:00
submit.c	dmaengine: idxd: fix missed completion on abort path	2021-12-22 09:32:41 +01:00
sysfs.c	dmaengine: idxd: Set traffic class values in GRPCFG on DSA 2.0	2023-03-10 09:39:34 +01:00