linux-kernel - Re: [PATCH] acpi/nfit: Always dump

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Date:   Wed, 13 Mar 2019 00:10:42 +0000
From:   "Verma, Vishal L" <vishal.l.verma@...el.com>
To:     "Williams, Dan J" <dan.j.williams@...el.com>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] acpi/nfit: Always dump _DSM output payload

On Tue, 2019-03-12 at 14:37 -0700, Dan Williams wrote:
> The dynamic-debug statements for command payload output only get
> emitted
> when the command is not ND_CMD_CALL. Move the output payload dumping
> ahead of the early return path for ND_CMD_CALL.
> 
> Fixes: 31eca76ba2fc9 ("...whitelisted dimm command marshaling
> mechanism")
> Reported-by: Vishal Verma <vishal.l.verma@...el.com>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>
> ---
>  drivers/acpi/nfit/core.c |   12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 

Looks good to me,
Reviewed-by: Vishal Verma <vishal.l.verma@...el.com>

> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index a22e2f2bbb75..c9367e78521b 100644
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -546,6 +546,12 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor
> *nd_desc, struct nvdimm *nvdimm,
>  		goto out;
>  	}
>  
> +	dev_dbg(dev, "%s cmd: %s output length: %d\n", dimm_name,
> +			cmd_name, out_obj->buffer.length);
> +	print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
> +			out_obj->buffer.pointer,
> +			min_t(u32, 128, out_obj->buffer.length), true);
> +
>  	if (call_pkg) {
>  		call_pkg->nd_fw_size = out_obj->buffer.length;
>  		memcpy(call_pkg->nd_payload + call_pkg->nd_size_in,
> @@ -564,12 +570,6 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor
> *nd_desc, struct nvdimm *nvdimm,
>  		return 0;
>  	}
>  
> -	dev_dbg(dev, "%s cmd: %s output length: %d\n", dimm_name,
> -			cmd_name, out_obj->buffer.length);
> -	print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
> -			out_obj->buffer.pointer,
> -			min_t(u32, 128, out_obj->buffer.length), true);
> -
>  	for (i = 0, offset = 0; i < desc->out_num; i++) {
>  		u32 out_size = nd_cmd_out_size(nvdimm, cmd, desc, i,
> buf,
>  				(u32 *) out_obj->buffer.pointer,
>