linux-kernel - [tip:ras/core] RAS/CEC: Dump the different array element sections

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Sat, 8 Jun 2019 14:29:41 -0700
From:   tip-bot for Borislav Petkov <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     bp@...e.de, mingo@...nel.org, tglx@...utronix.de,
        tony.luck@...el.com, linux-edac@...r.kernel.org, hpa@...or.com
Subject: [tip:ras/core] RAS/CEC: Dump the different array element sections

Commit-ID:  f57518cd56e2919afbcef3839122a75e291c7f85
Gitweb:     https://git.kernel.org/tip/f57518cd56e2919afbcef3839122a75e291c7f85
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Sat, 20 Apr 2019 23:01:03 +0200
Committer:  Borislav Petkov <bp@...e.de>
CommitDate: Sat, 8 Jun 2019 17:39:11 +0200

RAS/CEC: Dump the different array element sections

When dumping the array elements, print them in the following format:

  [ PFN | generation in binary | count ]

to be perfectly clear what all those sections are.

Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Tony Luck <tony.luck@...el.com>
Cc: linux-edac <linux-edac@...r.kernel.org>
---
 drivers/ras/cec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
index 364f7e1a6bad..dc08c705b493 100644
--- a/drivers/ras/cec.c
+++ b/drivers/ras/cec.c
@@ -429,6 +429,8 @@ static int action_threshold_set(void *data, u64 val)
 }
 DEFINE_DEBUGFS_ATTRIBUTE(action_threshold_ops, u64_get, action_threshold_set, "%lld\n");
 
+static const char * const bins[] = { "00", "01", "10", "11" };
+
 static int array_dump(struct seq_file *m, void *v)
 {
 	struct ce_array *ca = &ce_arr;
@@ -440,7 +442,8 @@ static int array_dump(struct seq_file *m, void *v)
 	for (i = 0; i < ca->n; i++) {
 		u64 this = PFN(ca->array[i]);
 
-		seq_printf(m, " %03d: [%016llx|%03llx]\n", i, this, FULL_COUNT(ca->array[i]));
+		seq_printf(m, " %3d: [%016llx|%s|%03llx]\n",
+			   i, this, bins[DECAY(ca->array[i])], COUNT(ca->array[i]));
 	}
 
 	seq_printf(m, "}\n");