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With 4.13 kernel I get this boot message: [ 1.051727] ------------[ cut here ]------------ [ 1.051818] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74 [ 1.051849] sysfs: cannot create duplicate filename '/devices/platform/omap_hsmmc.2' [ 1.051879] Modules linked in: [ 1.051971] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-letux+ #1360 [ 1.052001] Hardware name: Generic OMAP3 (Flattened Device Tree) [ 1.052062] [<c010f690>] (unwind_backtrace) from [<c010bba8>] (show_stack+0x10/0x14) [ 1.052124] [<c010bba8>] (show_stack) from [<c075dc88>] (dump_stack+0x98/0xd0) [ 1.052185] [<c075dc88>] (dump_stack) from [<c012f398>] (__warn+0xd0/0x100) [ 1.052215] [<c012f398>] (__warn) from [<c012f3fc>] (warn_slowpath_fmt+0x34/0x44) [ 1.052276] [<c012f3fc>] (warn_slowpath_fmt) from [<c02ebcb4>] (sysfs_warn_dup+0x54/0x74) [ 1.052337] [<c02ebcb4>] (sysfs_warn_dup) from [<c02ebd90>] (sysfs_create_dir_ns+0x74/0x84) [ 1.052398] [<c02ebd90>] (sysfs_create_dir_ns) from [<c0761b8c>] (kobject_add_internal+0xd0/0x294) [ 1.052429] [<c0761b8c>] (kobject_add_internal) from [<c0761f00>] (kobject_add+0x6c/0x8c) [ 1.052490] [<c0761f00>] (kobject_add) from [<c04e831c>] (device_add+0xe4/0x510) [ 1.052551] [<c04e831c>] (device_add) from [<c04ec6e4>] (platform_device_add+0x130/0x1c0) [ 1.052612] [<c04ec6e4>] (platform_device_add) from [<c01281c0>] (omap_hsmmc_late_init+0x3c/0x60) [ 1.052673] [<c01281c0>] (omap_hsmmc_late_init) from [<c0b0fa44>] (omap3_pandora_legacy_init+0x24/0xb4) [ 1.052734] [<c0b0fa44>] (omap3_pandora_legacy_init) from [<c0128178>] (pdata_quirks_check+0x30/0x3c) [ 1.052795] [<c0128178>] (pdata_quirks_check) from [<c0b0f950>] (omap_generic_init+0xc/0x18) [ 1.052856] [<c0b0f950>] (omap_generic_init) from [<c0b03480>] (customize_machine+0x1c/0x28) [ 1.052917] [<c0b03480>] (customize_machine) from [<c0101938>] (do_one_initcall+0xa8/0x150) [ 1.052947] [<c0101938>] (do_one_initcall) from [<c0b00d70>] (kernel_init_freeable+0x110/0x1d4) [ 1.053009] [<c0b00d70>] (kernel_init_freeable) from [<c076f198>] (kernel_init+0x8/0x10c) [ 1.053070] [<c076f198>] (kernel_init) from [<c01070f0>] (ret_from_fork+0x14/0x24) [ 1.055023] ---[ end trace 44e490b09ac4ab88 ]--- This can be traced down to the calls of omap_hsmmc_init(pandora_mmc3); omap_hsmmc_late_init(pandora_mmc3); in omap3_pandora_legacy_init(). It turns out that both funcions disagree how to decide if the other one was alredy called. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.