linux-kernel - Re: [PATCH 2/2] RAS: Introduce the FRU Memory Poison Manager

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Date: Wed, 14 Feb 2024 12:15:55 +0100
From: Borislav Petkov <bp@...en8.de>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: tony.luck@...el.com, linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org, avadhut.naik@....com,
	john.allen@....com, muralidhara.mk@....com,
	naveenkrishna.chatradhi@....com, sathyapriya.k@....com
Subject: Re: [PATCH 2/2] RAS: Introduce the FRU Memory Poison Manager

On Tue, Feb 13, 2024 at 09:35:16PM -0600, Yazen Ghannam wrote:
> +static bool has_valid_entries(u64 valid_bits)
> +{
> +	if (!(valid_bits & FMP_VALID_LIST_ENTRIES))
> +		return false;
> +
> +	if (!(valid_bits & FMP_VALID_LIST))
> +		return false;
> +
> +	return true;
> +}

Rename:

diff --git a/drivers/ras/amd/fmpm.c b/drivers/ras/amd/fmpm.c
index 090b60d269e7..3da3f40f1efe 100644
--- a/drivers/ras/amd/fmpm.c
+++ b/drivers/ras/amd/fmpm.c
@@ -221,7 +221,7 @@ static int update_record_on_storage(struct fru_rec *rec)
 	return ret;
 }
 
-static bool has_valid_entries(struct fru_rec *rec)
+static bool rec_has_valid_entries(struct fru_rec *rec)
 {
 	if (!(rec->fmp.validation_bits & FMP_VALID_LIST_ENTRIES))
 		return false;
@@ -286,7 +286,7 @@ static void update_fru_record(struct fru_rec *rec, struct mce *m)
 	fpd.addr	= m->addr;
 
 	/* This is the first entry, so just save it. */
-	if (!has_valid_entries(rec))
+	if (!rec_has_valid_entries(rec))
 		goto save_fpd;
 
 	/* Ignore already recorded errors. */
@@ -397,7 +397,7 @@ static void retire_mem_records(void)
 	for_each_fru(i, rec) {
 		fmp = &rec->fmp;
 
-		if (!has_valid_entries(rec))
+		if (!rec_has_valid_entries(rec))
 			continue;
 
 		cpu = get_cpu_from_fru_id(fmp->fru_id);

---

and this one:

---

diff --git a/drivers/ras/amd/fmpm.c b/drivers/ras/amd/fmpm.c
index 3da3f40f1efe..813cc6a4f435 100644
--- a/drivers/ras/amd/fmpm.c
+++ b/drivers/ras/amd/fmpm.c
@@ -255,12 +255,12 @@ static bool same_fpd(struct cper_fru_poison_desc *old, struct cper_fru_poison_de
 	return true;
 }
 
-static bool is_dup_fpd(struct fru_rec *rec, struct cper_fru_poison_desc *new)
+static bool rec_has_fpd(struct fru_rec *rec, struct cper_fru_poison_desc *fpd)
 {
 	unsigned int i;
 
 	for (i = 0; i < rec->fmp.nr_entries; i++) {
-		if (same_fpd(get_fpd(rec, i), new)) {
+		if (same_fpd(get_fpd(rec, i), fpd)) {
 			pr_debug("Found duplicate record");
 			return true;
 		}
@@ -290,7 +290,7 @@ static void update_fru_record(struct fru_rec *rec, struct mce *m)
 		goto save_fpd;
 
 	/* Ignore already recorded errors. */
-	if (is_dup_fpd(rec, &fpd))
+	if (rec_has_fpd(rec, &fpd))
 		goto out_unlock;
 
 	if (rec->fmp.nr_entries >= max_nr_entries) {

-- 
Regards/Gruss,
    Boris.

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