• Meng Li's avatar
    soc: fsl: dpio: replace smp_processor_id with raw_smp_processor_id · e775eb9f
    Meng Li authored
    When enable debug kernel configs,there will be calltrace as below:
    
    BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
    caller is debug_smp_processor_id+0x20/0x30
    CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.10.63-yocto-standard #1
    Hardware name: NXP Layerscape LX2160ARDB (DT)
    Call trace:
     dump_backtrace+0x0/0x1a0
     show_stack+0x24/0x30
     dump_stack+0xf0/0x13c
     check_preemption_disabled+0x100/0x110
     debug_smp_processor_id+0x20/0x30
     dpaa2_io_query_fq_count+0xdc/0x154
     dpaa2_eth_stop+0x144/0x314
     __dev_close_many+0xdc/0x160
     __dev_change_flags+0xe8/0x220
     dev_change_flags+0x30/0x70
     ic_close_devs+0x50/0x78
     ip_auto_config+0xed0/0xf10
     do_one_initcall+0xac/0x460
     kernel_init_freeable+0x30c/0x378
     kernel_init+0x20/0x128
     ret_from_fork+0x10/0x38
    
    Based on comment in the context, it doesn't matter whether
    preemption is disable or not. So, replace smp_processor_id()
    with raw_smp_processor_id() to avoid above call trace.
    
    Fixes: c89105c9 ("staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl")
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarMeng Li <Meng.Li@windriver.com>
    Signed-off-by: default avatarLi Yang <leoyang.li@nxp.com>
    e775eb9f
dpio-service.c 20.7 KB