Re: [PATCH v2 -next] scsi: qla2xxx: Fix build error implicit-function-declaration

[Daniel Wagner]

On Mon, Sep 19, 2022 at 09:34:04PM +0800, Ren Zhijie wrote:
> If CONFIG_TRACING is not set,
> make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-,
> will be failed, like this:
> 
> drivers/scsi/qla2xxx/qla_os.c: In function ‘qla_trace_init’:
> drivers/scsi/qla2xxx/qla_os.c:2854:18: error: implicit declaration of function ‘trace_array_get_by_name’; did you mean ‘trace_array_set_clr_event’? [-Werror=implicit-function-declaration]
>   qla_trc_array = trace_array_get_by_name("qla2xxx");
>                   ^~~~~~~~~~~~~~~~~~~~~~~
>                   trace_array_set_clr_event
> drivers/scsi/qla2xxx/qla_os.c:2854:16: error: assignment makes pointer from integer without a cast [-Werror=int-conversion]
>   qla_trc_array = trace_array_get_by_name("qla2xxx");
>                 ^
> drivers/scsi/qla2xxx/qla_os.c: In function ‘qla_trace_uninit’:
> drivers/scsi/qla2xxx/qla_os.c:2869:2: error: implicit declaration of function ‘trace_array_put’; did you mean ‘trace_seq_putc’? [-Werror=implicit-function-declaration]
>   trace_array_put(qla_trc_array);
>   ^~~~~~~~~~~~~~~
>   trace_seq_putc
> cc1: all warnings being treated as errors
> 
> To fix this error, wrap up all the relevant code with CONFIG_TRACING.
> 
> Fixes: 8bfc149ba24c ("scsi: qla2xxx: Enhance driver tracing with separate tunable and more")
> Signed-off-by: Ren Zhijie <renzhijie2@xxxxxxxxxx>

Reviewed-by: Daniel Wagner <dwagner@xxxxxxx>