5.11-stable patches

added patches:
	ras-cec-correct-ce_add_elem-s-returned-values.patch

diff --git a/queue-5.11/ras-cec-correct-ce_add_elem-s-returned-values.patch b/queue-5.11/ras-cec-correct-ce_add_elem-s-returned-values.patch
new file mode 100644 (file)
index 0000000..8348b2f
--- /dev/null
+++ b/queue-5.11/ras-cec-correct-ce_add_elem-s-returned-values.patch
@@ -0,0 +1,60 @@
+From 3a62583c2853b0ab37a57dde79decea210b5fb89 Mon Sep 17 00:00:00 2001
+From: William Roche <william.roche@oracle.com>
+Date: Tue, 6 Apr 2021 11:28:59 -0400
+Subject: RAS/CEC: Correct ce_add_elem()'s returned values
+
+From: William Roche <william.roche@oracle.com>
+
+commit 3a62583c2853b0ab37a57dde79decea210b5fb89 upstream.
+
+ce_add_elem() uses different return values to signal a result from
+adding an element to the collector. Commit in Fixes: broke the case
+where the element being added is not found in the array. Correct that.
+
+ [ bp: Rewrite commit message, add kernel-doc comments. ]
+
+Fixes: de0e0624d86f ("RAS/CEC: Check count_threshold unconditionally")
+Signed-off-by: William Roche <william.roche@oracle.com>
+Signed-off-by: Borislav Petkov <bp@suse.de>
+Cc: <stable@vger.kernel.org>
+Link: https://lkml.kernel.org/r/1617722939-29670-1-git-send-email-william.roche@oracle.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/ras/cec.c |   15 ++++++++++++---
+ 1 file changed, 12 insertions(+), 3 deletions(-)
+
+--- a/drivers/ras/cec.c
++++ b/drivers/ras/cec.c
+@@ -309,11 +309,20 @@ static bool sanity_check(struct ce_array
+       return ret;
+ }
+ 
++/**
++ * cec_add_elem - Add an element to the CEC array.
++ * @pfn:      page frame number to insert
++ *
++ * Return values:
++ * - <0:      on error
++ * -  0:      on success
++ * - >0:      when the inserted pfn was offlined
++ */
+ static int cec_add_elem(u64 pfn)
+ {
+       struct ce_array *ca = &ce_arr;
++      int count, err, ret = 0;
+       unsigned int to = 0;
+-      int count, ret = 0;
+ 
+       /*
+        * We can be called very early on the identify_cpu() path where we are
+@@ -330,8 +339,8 @@ static int cec_add_elem(u64 pfn)
+       if (ca->n == MAX_ELEMS)
+               WARN_ON(!del_lru_elem_unlocked(ca));
+ 
+-      ret = find_elem(ca, pfn, &to);
+-      if (ret < 0) {
++      err = find_elem(ca, pfn, &to);
++      if (err < 0) {
+               /*
+                * Shift range [to-end] to make room for one more element.
+                */

diff --git a/queue-5.11/series b/queue-5.11/series
index a808b6a62f39d868dd010ffc1e47e6462691679c..fc35778bbfa5a286f81d8589744e51d66b3c6e4d 100644 (file)
--- a/queue-5.11/series
+++ b/queue-5.11/series
@@ -187,3 +187,4 @@ i40e-fix-parameters-in-aq_get_phy_register.patch
 rdma-addr-be-strict-with-gid-size.patch
 vdpa-mlx5-should-exclude-header-length-and-fcs-from-.patch
 vdpa-mlx5-fix-wrong-use-of-bit-numbers.patch
+ras-cec-correct-ce_add_elem-s-returned-values.patch