Re: [PATCH v2] lpfc: Fix compilation errors on kernels with no CONFIG_DEBUG_FS

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On Tue, Sep 07, 2021 at 10:09:27PM -0700, James Smart wrote:
> The Kernel test robot flagged the following warning:
> ".../lpfc_init.c:7788:35: error: 'struct lpfc_sli4_hba' has no member
> named 'c_stat'"
> 
> Reviewing this issue highlighted that one of the recent patches caused
> the driver to no longer compile cleanly if CONFIG_DEBUG_FS is not set.
> 
> Correct the different areas that are failing to compile.
> 
> Fixes: 02243836ad6f ("scsi: lpfc: Add support for the CM framework")
> Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
> Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
> Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>

Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Build-tested-by: Nathan Chancellor <nathan@xxxxxxxxxx>

> ---
> v2:
>  Address review comments:
>  ifdef order in lpfc_sli4_driver_resource_setup()
>  Initialization of 0L in lpfc_queuecommand()
> ---
>  drivers/scsi/lpfc/lpfc_init.c | 4 ++--
>  drivers/scsi/lpfc/lpfc_nvme.c | 2 --
>  drivers/scsi/lpfc/lpfc_scsi.c | 6 +-----
>  3 files changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
> index d3f1fa38269f..d2c16e4410a9 100644
> --- a/drivers/scsi/lpfc/lpfc_init.c
> +++ b/drivers/scsi/lpfc/lpfc_init.c
> @@ -8277,11 +8277,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
>  	return 0;
>  
>  out_free_hba_hdwq_info:
> -	free_percpu(phba->sli4_hba.c_stat);
>  #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
> +	free_percpu(phba->sli4_hba.c_stat);
>  out_free_hba_idle_stat:
> -	kfree(phba->sli4_hba.idle_stat);
>  #endif
> +	kfree(phba->sli4_hba.idle_stat);
>  out_free_hba_eq_info:
>  	free_percpu(phba->sli4_hba.eq_info);
>  out_free_hba_cpu_map:
> diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
> index 73a3568ff17e..479b3eed6208 100644
> --- a/drivers/scsi/lpfc/lpfc_nvme.c
> +++ b/drivers/scsi/lpfc/lpfc_nvme.c
> @@ -1489,9 +1489,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
>  	struct lpfc_nvme_qhandle *lpfc_queue_info;
>  	struct lpfc_nvme_fcpreq_priv *freqpriv;
>  	struct nvme_common_command *sqe;
> -#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
>  	uint64_t start = 0;
> -#endif
>  
>  	/* Validate pointers. LLDD fault handling with transport does
>  	 * have timing races.
> diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
> index 0fde1e874c7a..63d8ac9f68a7 100644
> --- a/drivers/scsi/lpfc/lpfc_scsi.c
> +++ b/drivers/scsi/lpfc/lpfc_scsi.c
> @@ -5578,12 +5578,8 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
>  	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
>  	int err, idx;
>  	u8 *uuid = NULL;
> -#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
> -	uint64_t start = 0L;
> +	uint64_t start;
>  
> -	if (phba->ktime_on)
> -		start = ktime_get_ns();
> -#endif
>  	start = ktime_get_ns();
>  	rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
>  
> -- 
> 2.26.2
> 
> 



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