• Felipe Balbi's avatar
    Revert "usb: gadget: u_ether: move hardware transmit to RX NAPI" · 9189a330
    Felipe Balbi authored
    This reverts commit 716fb91d.
    
    That commit caused a regression which would end up in a kernel
    BUG() as below:
    
    [  101.554300] g_ether gadget: full-speed config #1: CDC Subset/SAFE
    [  101.585186] ------------[ cut here ]------------
    [  101.600587] kernel BUG at include/linux/netdevice.h:495!
    [  101.615850] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM
    [  101.645539] Modules linked in:
    [  101.660483] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1+ #104
    [  101.690175] task: c05dc5c8 ti: c05d2000 task.ti: c05d2000
    [  101.705579] PC is at eth_start+0x64/0x8c
    [  101.720981] LR is at __netif_schedule+0x7c/0x90
    [  101.736455] pc : [<c0299174>]    lr : [<c036a134>]    psr: 60000093
    [  101.736455] sp : c05d3d18  ip : c05d3cf8  fp : c05d3d2c
    [  101.782340] r10: 00000000  r9 : c196c1f0  r8 : c196c1a0
    [  101.797823] r7 : 00000000  r6 : 00000002  r5 : c1976400  r4 : c1976400
    [  101.828058] r3 : 00000000  r2 : c05d3ce8  r1 : 00000001  r0 : 00000002
    [  101.858722] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM Segment kernel
    Reported-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
    Signed-of-by: default avatarFelipe Balbi <balbi@ti.com>
    9189a330
u_ether.c 28.6 KB