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From: James Morse <james.morse@arm.com>
To: Robert Richter <rrichter@marvell.com>
Cc: Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 10/21] EDAC, ghes: Remove pvt->detail_location string
Date: Wed, 29 May 2019 16:13:20 +0100
Message-ID: <7017c91e-8923-c8d2-26ca-875328ab855a@arm.com> (raw)
In-Reply-To: <20190529084344.28562-11-rrichter@marvell.com>

Hi Robert,

On 29/05/2019 09:44, Robert Richter wrote:
> The detail_location[] string in struct ghes_edac_pvt is complete
> useless and data is just copied around. Put everything into
> e->other_detail from the beginning.

We still print all that complete-useless detail_location stuff... so this commit message
had me confused about what you're doing here. I think you meant the space for the string,
instead of the value!

| detail_location[] is used to collect two location strings so they can be passed as one
| to trace_mc_event(). Instead of having an extra copy step, assemble the location string
| in other_detail[] from the beginning.


> diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
> index 39702bac5eaf..c18f16bc9e4d 100644
> --- a/drivers/edac/ghes_edac.c
> +++ b/drivers/edac/ghes_edac.c
> @@ -23,8 +23,7 @@ struct ghes_edac_pvt {
>  	struct mem_ctl_info *mci;
>  
>  	/* Buffers for the error handling routine */
> -	char detail_location[240];
> -	char other_detail[160];
> +	char other_detail[400];
>  	char msg[80];
>  };
>  
> @@ -225,13 +224,14 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
>  	memset(e, 0, sizeof (*e));
>  	e->error_count = 1;
>  	strcpy(e->label, "unknown label");
> -	e->msg = pvt->msg;
> -	e->other_detail = pvt->other_detail;
>  	e->top_layer = -1;
>  	e->mid_layer = -1;
>  	e->low_layer = -1;
> -	*pvt->other_detail = '\0';
> +	e->msg = pvt->msg;
> +	e->other_detail = pvt->other_detail;
> +
>  	*pvt->msg = '\0';
> +	*pvt->other_detail = '\0';

... so no change? Could you drop this hunk?

Regardless,
Reviewed-by: James Morse <james.morse@arm.com>


Thanks,

James

  reply index

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29  8:44 [PATCH 00/21] EDAC, mc, ghes: Fixes and updates to improve memory error reporting Robert Richter
2019-05-29  8:44 ` [PATCH 01/21] EDAC, mc: Fix edac_mc_find() in case no device is found Robert Richter
2019-05-29  8:44 ` [PATCH 02/21] EDAC: Fixes to use put_device() after device_add() errors Robert Richter
2019-06-11 17:28   ` Borislav Petkov
2019-06-12 17:17     ` Robert Richter
2019-05-29  8:44 ` [PATCH 03/21] EDAC: Kill EDAC_DIMM_PTR() macro Robert Richter
2019-05-29  8:44 ` [PATCH 04/21] EDAC: Kill EDAC_DIMM_OFF() macro Robert Richter
2019-05-29  8:44 ` [PATCH 05/21] EDAC: Introduce mci_for_each_dimm() iterator Robert Richter
2019-05-29  8:44 ` [PATCH 06/21] EDAC, mc: Cleanup _edac_mc_free() code Robert Richter
2019-05-29  8:44 ` [PATCH 07/21] EDAC, mc: Remove per layer counters Robert Richter
2019-05-29  8:44 ` [PATCH 08/21] EDAC, mc: Rework edac_raw_mc_handle_error() to use struct dimm_info Robert Richter
2019-05-29  8:44 ` [PATCH 09/21] EDAC, ghes: Use standard kernel macros for page calculations Robert Richter
2019-05-29 15:13   ` James Morse
2019-05-29  8:44 ` [PATCH 10/21] EDAC, ghes: Remove pvt->detail_location string Robert Richter
2019-05-29 15:13   ` James Morse [this message]
2019-06-12 18:13     ` Robert Richter
2019-05-29  8:44 ` [PATCH 11/21] EDAC, ghes: Unify trace_mc_event() code with edac_mc driver Robert Richter
2019-05-29 15:12   ` James Morse
2019-06-03 13:10     ` Robert Richter
2019-06-04 17:15       ` James Morse
2019-06-13 22:23         ` Robert Richter
2019-05-29  8:44 ` [PATCH 12/21] EDAC, ghes: Add support for legacy API counters Robert Richter
2019-05-29 15:13   ` James Morse
2019-06-12 18:41     ` Robert Richter
2019-06-19 17:22       ` James Morse
2019-06-20  6:55         ` Robert Richter
2019-06-26  9:33           ` James Morse
2019-06-26 10:27             ` Robert Richter
2019-05-29  8:44 ` [PATCH 13/21] EDAC, ghes: Rework memory hierarchy detection Robert Richter
2019-05-29 15:06   ` James Morse
2019-05-31 13:41     ` Robert Richter
2019-05-29  8:44 ` [PATCH 14/21] EDAC, ghes: Extract numa node information for each dimm Robert Richter
2019-05-29 17:51   ` James Morse
2019-06-13 20:52     ` Robert Richter
2019-05-29  8:44 ` [PATCH 15/21] EDAC, ghes: Moving code around ghes_edac_register() Robert Richter
2019-05-29  8:44 ` [PATCH 16/21] EDAC, ghes: Create one memory controller device per node Robert Richter
2019-05-29  8:44 ` [PATCH 17/21] EDAC, ghes: Fill sysfs with the DMI DIMM label information Robert Richter
2019-05-29  8:44 ` [PATCH 18/21] EDAC, mc: Introduce edac_mc_alloc_by_dimm() for per dimm allocation Robert Richter
2019-05-29  8:44 ` [PATCH 19/21] EDAC, ghes: Identify dimm by node, card, module and handle Robert Richter
2019-05-29  8:44 ` [PATCH 20/21] EDAC, ghes: Enable per-layer reporting based on card/module Robert Richter
2019-05-29  8:44 ` [PATCH 21/21] EDAC, Documentation: Describe CPER module definition and DIMM ranks Robert Richter
2019-05-29 14:54 ` [PATCH 00/21] EDAC, mc, ghes: Fixes and updates to improve memory error reporting Borislav Petkov
2019-05-31 14:48   ` Robert Richter

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