On Thu, Mar 05, 2015 at 10:04:21AM -0500, Peter Hurley wrote: > First boot of 4.0-rc+ gave me [1] on a Beaglebone Black due to > The warning is intentional to get driver fixed and give the right behaviour
Felipe had sent a patch for this but that one needs an update -- ~Vinod > commit ecc19d17868be9c9f8f00ed928791533c420f3e0 > Author: Maxime Ripard <maxime.rip...@free-electrons.com> > Date: Mon Nov 17 14:42:53 2014 +0100 > > dmaengine: Add a warning for drivers not using the generic slave caps > retrieval > > For the slave caps retrieval to be really useful, most drivers need to > implement it. > > Hence, we need to be slightly more aggressive, and trigger a warning at > registration time for drivers that don't fill their caps infos in order to > encourage them to implement it. > > Signed-off-by: Maxime Ripard <maxime.rip...@free-electrons.com> > Acked-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com> > Signed-off-by: Vinod Koul <vinod.k...@intel.com> > > Regards, > Peter Hurley > > [1] > > [ 1.848374] WARNING: CPU: 0 PID: 1 at > /home/peter/src/kernels/mainline/drivers/dma/dmaengine.c:863 > dma_async_device_register+0xe0/0x540() > [ 1.860798] this driver doesn't support generic slave capabilities > reporting > [ 1.867893] Modules linked in: > [ 1.870993] CPU: 0 PID: 1 Comm: swapper Not tainted 4.0.0-rc2+ #115 > [ 1.877302] Hardware name: Generic AM33XX (Flattened Device Tree) > [ 1.883478] [<c00164b8>] (unwind_backtrace) from [<c00135e8>] > (show_stack+0x20/0x24) > [ 1.891307] [<c00135e8>] (show_stack) from [<c091f7a0>] > (dump_stack+0x24/0x28) > [ 1.898602] [<c091f7a0>] (dump_stack) from [<c003dff4>] > (warn_slowpath_common+0x94/0xc0) > [ 1.906753] [<c003dff4>] (warn_slowpath_common) from [<c003e060>] > (warn_slowpath_fmt+0x40/0x48) > [ 1.915515] [<c003e060>] (warn_slowpath_fmt) from [<c0561fd8>] > (dma_async_device_register+0xe0/0x540) > [ 1.924806] [<c0561fd8>] (dma_async_device_register) from [<c056b3cc>] > (cppi41_dma_probe+0x470/0x4c0) > [ 1.934397] [<c056b3cc>] (cppi41_dma_probe) from [<c05f7e6c>] > (platform_drv_probe+0x54/0xb4) > [ 1.942924] [<c05f7e6c>] (platform_drv_probe) from [<c05f5bac>] > (driver_probe_device+0x14c/0x3a8) > [ 1.951861] [<c05f5bac>] (driver_probe_device) from [<c05f5e58>] > (__device_attach+0x50/0x54) > [ 1.960360] [<c05f5e58>] (__device_attach) from [<c05f3c94>] > (bus_for_each_drv+0x68/0x9c) > [ 1.968596] [<c05f3c94>] (bus_for_each_drv) from [<c05f59ec>] > (device_attach+0x84/0x98) > [ 1.976656] [<c05f59ec>] (device_attach) from [<c05f4e70>] > (bus_probe_device+0x94/0xb8) > [ 1.984717] [<c05f4e70>] (bus_probe_device) from [<c05f2cb0>] > (device_add+0x3dc/0x59c) > [ 1.992700] [<c05f2cb0>] (device_add) from [<c07a6f5c>] > (of_device_add+0x44/0x4c) > [ 2.000242] [<c07a6f5c>] (of_device_add) from [<c07a78d4>] > (of_platform_device_create_pdata+0x140/0x234) > [ 2.009788] [<c07a78d4>] (of_platform_device_create_pdata) from > [<c07a7af8>] (of_platform_bus_create+0x10c/0x234) > [ 2.020118] [<c07a7af8>] (of_platform_bus_create) from [<c07a7dbc>] > (of_platform_populate+0x6c/0xc8) > [ 2.029319] [<c07a7dbc>] (of_platform_populate) from [<c06e83f8>] > (am335x_child_probe+0x38/0x54) > [ 2.038168] [<c06e83f8>] (am335x_child_probe) from [<c05f7e6c>] > (platform_drv_probe+0x54/0xb4) > [ 2.046840] [<c05f7e6c>] (platform_drv_probe) from [<c05f5bac>] > (driver_probe_device+0x14c/0x3a8) > [ 2.055774] [<c05f5bac>] (driver_probe_device) from [<c05f5ef8>] > (__driver_attach+0x9c/0xa0) > [ 2.064268] [<c05f5ef8>] (__driver_attach) from [<c05f3bcc>] > (bus_for_each_dev+0x70/0xa4) > [ 2.072501] [<c05f3bcc>] (bus_for_each_dev) from [<c05f555c>] > (driver_attach+0x2c/0x30) > [ 2.080561] [<c05f555c>] (driver_attach) from [<c05f515c>] > (bus_add_driver+0x170/0x22c) > [ 2.088623] [<c05f515c>] (bus_add_driver) from [<c05f6878>] > (driver_register+0x88/0x108) > [ 2.096770] [<c05f6878>] (driver_register) from [<c05f7d98>] > (__platform_driver_register+0x64/0x6c) > [ 2.105884] [<c05f7d98>] (__platform_driver_register) from [<c0d8df0c>] > (am335x_child_init+0x1c/0x20) > [ 2.115171] [<c0d8df0c>] (am335x_child_init) from [<c0008ad8>] > (do_one_initcall+0xe8/0x230) > [ 2.123592] [<c0008ad8>] (do_one_initcall) from [<c0d45f90>] > (kernel_init_freeable+0x1e0/0x284) > [ 2.132355] [<c0d45f90>] (kernel_init_freeable) from [<c0919044>] > (kernel_init+0x1c/0x100) > [ 2.140681] [<c0919044>] (kernel_init) from [<c000f8d0>] > (ret_from_fork+0x14/0x24) > -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
