[PATCH AUTOSEL 5.10 01/25] af_key: relax availability checks for skb size calculation

[PATCH AUTOSEL 5.10 01/25] af_key: relax availability checks for skb size calculation

[Sasha Levin]

From: Cong Wang <cong.wang@bytedance.com>

[ Upstream commit afbc293add6466f8f3f0c3d944d85f53709c170f ]

xfrm_probe_algs() probes kernel crypto modules and changes the
availability of struct xfrm_algo_desc. But there is a small window
where ealg->available and aalg->available get changed between
count_ah_combs()/count_esp_combs() and dump_ah_combs()/dump_esp_combs(),
in this case we may allocate a smaller skb but later put a larger
amount of data and trigger the panic in skb_put().

Fix this by relaxing the checks when counting the size, that is,
skipping the test of ->available. We may waste some memory for a few
of sizeof(struct sadb_comb), but it is still much better than a panic.

Reported-by: syzbot+b2bf2652983d23734c5c@syzkaller.appspotmail.com
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/key/af_key.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/key/af_key.c b/net/key/af_key.c
index c12dbc51ef5fe..ef9b4ac03e7b7 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2902,7 +2902,7 @@ static int count_ah_combs(const struct xfrm_tmpl *t)
 			break;
 		if (!aalg->pfkey_supported)
 			continue;
-		if (aalg_tmpl_set(t, aalg) && aalg->available)
+		if (aalg_tmpl_set(t, aalg))
 			sz += sizeof(struct sadb_comb);
 	}
 	return sz + sizeof(struct sadb_prop);
@@ -2920,7 +2920,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
 		if (!ealg->pfkey_supported)
 			continue;
 
-		if (!(ealg_tmpl_set(t, ealg) && ealg->available))
+		if (!(ealg_tmpl_set(t, ealg)))
 			continue;
 
 		for (k = 1; ; k++) {
@@ -2931,7 +2931,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
 			if (!aalg->pfkey_supported)
 				continue;
 
-			if (aalg_tmpl_set(t, aalg) && aalg->available)
+			if (aalg_tmpl_set(t, aalg))
 				sz += sizeof(struct sadb_comb);
 		}
 	}
-- 
2.27.0

[PATCH AUTOSEL 5.10 02/25] regulator: core: avoid regulator_resolve_supply() race condition

[Sasha Levin]

From: David Collins <collinsd@codeaurora.org>

[ Upstream commit eaa7995c529b54d68d97a30f6344cc6ca2f214a7 ]

The final step in regulator_register() is to call
regulator_resolve_supply() for each registered regulator
(including the one in the process of being registered).  The
regulator_resolve_supply() function first checks if rdev->supply
is NULL, then it performs various steps to try to find the supply.
If successful, rdev->supply is set inside of set_supply().

This procedure can encounter a race condition if two concurrent
tasks call regulator_register() near to each other on separate CPUs
and one of the regulators has rdev->supply_name specified.  There
is currently nothing guaranteeing atomicity between the rdev->supply
check and set steps.  Thus, both tasks can observe rdev->supply==NULL
in their regulator_resolve_supply() calls.  This then results in
both creating a struct regulator for the supply.  One ends up
actually stored in rdev->supply and the other is lost (though still
present in the supply's consumer_list).

Here is a kernel log snippet showing the issue:

[   12.421768] gpu_cc_gx_gdsc: supplied by pm8350_s5_level
[   12.425854] gpu_cc_gx_gdsc: supplied by pm8350_s5_level
[   12.429064] debugfs: Directory 'regulator.4-SUPPLY' with parent
               '17a00000.rsc:rpmh-regulator-gfxlvl-pm8350_s5_level'
               already present!

Avoid this race condition by holding the rdev->mutex lock inside
of regulator_resolve_supply() while checking and setting
rdev->supply.

Signed-off-by: David Collins <collinsd@codeaurora.org>
Link: https://lore.kernel.org/r/1610068562-4410-1-git-send-email-collinsd@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/core.c | 39 ++++++++++++++++++++++++++++-----------
 1 file changed, 28 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 42bbd99a36acf..2c31f04ff950f 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1813,23 +1813,34 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 {
 	struct regulator_dev *r;
 	struct device *dev = rdev->dev.parent;
-	int ret;
+	int ret = 0;
 
 	/* No supply to resolve? */
 	if (!rdev->supply_name)
 		return 0;
 
-	/* Supply already resolved? */
+	/* Supply already resolved? (fast-path without locking contention) */
 	if (rdev->supply)
 		return 0;
 
+	/*
+	 * Recheck rdev->supply with rdev->mutex lock held to avoid a race
+	 * between rdev->supply null check and setting rdev->supply in
+	 * set_supply() from concurrent tasks.
+	 */
+	regulator_lock(rdev);
+
+	/* Supply just resolved by a concurrent task? */
+	if (rdev->supply)
+		goto out;
+
 	r = regulator_dev_lookup(dev, rdev->supply_name);
 	if (IS_ERR(r)) {
 		ret = PTR_ERR(r);
 
 		/* Did the lookup explicitly defer for us? */
 		if (ret == -EPROBE_DEFER)
-			return ret;
+			goto out;
 
 		if (have_full_constraints()) {
 			r = dummy_regulator_rdev;
@@ -1837,15 +1848,18 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 		} else {
 			dev_err(dev, "Failed to resolve %s-supply for %s\n",
 				rdev->supply_name, rdev->desc->name);
-			return -EPROBE_DEFER;
+			ret = -EPROBE_DEFER;
+			goto out;
 		}
 	}
 
 	if (r == rdev) {
 		dev_err(dev, "Supply for %s (%s) resolved to itself\n",
 			rdev->desc->name, rdev->supply_name);
-		if (!have_full_constraints())
-			return -EINVAL;
+		if (!have_full_constraints()) {
+			ret = -EINVAL;
+			goto out;
+		}
 		r = dummy_regulator_rdev;
 		get_device(&r->dev);
 	}
@@ -1859,7 +1873,8 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 	if (r->dev.parent && r->dev.parent != rdev->dev.parent) {
 		if (!device_is_bound(r->dev.parent)) {
 			put_device(&r->dev);
-			return -EPROBE_DEFER;
+			ret = -EPROBE_DEFER;
+			goto out;
 		}
 	}
 
@@ -1867,13 +1882,13 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 	ret = regulator_resolve_supply(r);
 	if (ret < 0) {
 		put_device(&r->dev);
-		return ret;
+		goto out;
 	}
 
 	ret = set_supply(rdev, r);
 	if (ret < 0) {
 		put_device(&r->dev);
-		return ret;
+		goto out;
 	}
 
 	/*
@@ -1886,11 +1901,13 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 		if (ret < 0) {
 			_regulator_put(rdev->supply);
 			rdev->supply = NULL;
-			return ret;
+			goto out;
 		}
 	}
 
-	return 0;
+out:
+	regulator_unlock(rdev);
+	return ret;
 }
 
 /* Internal regulator request function */
-- 
2.27.0

[PATCH AUTOSEL 5.10 03/25] ASoC: wm_adsp: Fix control name parsing for multi-fw

[Sasha Levin]

From: James Schulman <james.schulman@cirrus.com>

[ Upstream commit a8939f2e138e418c2b059056ff5b501eaf2eae54 ]

When switching between firmware types, the wrong control
can be selected when requesting control in kernel API.
Use the currently selected DSP firwmare type to select
the proper mixer control.

Signed-off-by: James Schulman <james.schulman@cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210115201105.14075-1-james.schulman@cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/wm_adsp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index dec8716aa8ef5..985b2dcecf138 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -2031,11 +2031,14 @@ static struct wm_coeff_ctl *wm_adsp_get_ctl(struct wm_adsp *dsp,
 					     unsigned int alg)
 {
 	struct wm_coeff_ctl *pos, *rslt = NULL;
+	const char *fw_txt = wm_adsp_fw_text[dsp->fw];
 
 	list_for_each_entry(pos, &dsp->ctl_list, list) {
 		if (!pos->subname)
 			continue;
 		if (strncmp(pos->subname, name, pos->subname_len) == 0 &&
+		    strncmp(pos->fw_name, fw_txt,
+			    SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0 &&
 				pos->alg_region.alg == alg &&
 				pos->alg_region.type == type) {
 			rslt = pos;
-- 
2.27.0

[PATCH AUTOSEL 5.10 04/25] drm/nouveau/nvif: fix method count when pushing an array

[Sasha Levin]

From: Ben Skeggs <bskeggs@redhat.com>

[ Upstream commit d502297008142645edf5c791af424ed321e5da84 ]

Reported-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/include/nvif/push.h | 216 ++++++++++----------
 1 file changed, 108 insertions(+), 108 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/include/nvif/push.h b/drivers/gpu/drm/nouveau/include/nvif/push.h
index 168d7694ede5c..6d3a8a3d2087b 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/push.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/push.h
@@ -123,131 +123,131 @@ PUSH_KICK(struct nvif_push *push)
 } while(0)
 #endif
 
-#define PUSH_1(X,f,ds,n,c,o,p,s,mA,dA) do {                            \
-	PUSH_##o##_HDR((p), s, mA, (c)+(n));                           \
-	PUSH_##f(X, (p), X##mA, 1, o, (dA), ds, "");                   \
+#define PUSH_1(X,f,ds,n,o,p,s,mA,dA) do {                             \
+	PUSH_##o##_HDR((p), s, mA, (ds)+(n));                         \
+	PUSH_##f(X, (p), X##mA, 1, o, (dA), ds, "");                  \
 } while(0)
-#define PUSH_2(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (1?PUSH_##o##_INC), "mthd1");       \
-	PUSH_1(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_2(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (1?PUSH_##o##_INC), "mthd1");      \
+	PUSH_1(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_3(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd2");       \
-	PUSH_2(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_3(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd2");      \
+	PUSH_2(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_4(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd3");       \
-	PUSH_3(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_4(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd3");      \
+	PUSH_3(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_5(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd4");       \
-	PUSH_4(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_5(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd4");      \
+	PUSH_4(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_6(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd5");       \
-	PUSH_5(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_6(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd5");      \
+	PUSH_5(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_7(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd6");       \
-	PUSH_6(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_7(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd6");      \
+	PUSH_6(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_8(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd7");       \
-	PUSH_7(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_8(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd7");      \
+	PUSH_7(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_9(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                 \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd8");       \
-	PUSH_8(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_9(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                  \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd8");      \
+	PUSH_8(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
-#define PUSH_10(X,f,ds,n,c,o,p,s,mB,dB,mA,dA,a...) do {                \
-	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd9");       \
-	PUSH_9(X, DATA_, 1, ds, (c)+(n), o, (p), s, X##mA, (dA), ##a); \
-	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                   \
+#define PUSH_10(X,f,ds,n,o,p,s,mB,dB,mA,dA,a...) do {                 \
+	PUSH_ASSERT((mB) - (mA) == (0?PUSH_##o##_INC), "mthd9");      \
+	PUSH_9(X, DATA_, 1, (ds) + (n), o, (p), s, X##mA, (dA), ##a); \
+	PUSH_##f(X, (p), X##mB, 0, o, (dB), ds, "");                  \
 } while(0)
 
-#define PUSH_1D(X,o,p,s,mA,dA)                            \
-	PUSH_1(X, DATA_, 1, 1, 0, o, (p), s, X##mA, (dA))
-#define PUSH_2D(X,o,p,s,mA,dA,mB,dB)                      \
-	PUSH_2(X, DATA_, 1, 1, 0, o, (p), s, X##mB, (dB), \
-					     X##mA, (dA))
-#define PUSH_3D(X,o,p,s,mA,dA,mB,dB,mC,dC)                \
-	PUSH_3(X, DATA_, 1, 1, 0, o, (p), s, X##mC, (dC), \
-					     X##mB, (dB), \
-					     X##mA, (dA))
-#define PUSH_4D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD)          \
-	PUSH_4(X, DATA_, 1, 1, 0, o, (p), s, X##mD, (dD), \
-					     X##mC, (dC), \
-					     X##mB, (dB), \
-					     X##mA, (dA))
-#define PUSH_5D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE)    \
-	PUSH_5(X, DATA_, 1, 1, 0, o, (p), s, X##mE, (dE), \
-					     X##mD, (dD), \
-					     X##mC, (dC), \
-					     X##mB, (dB), \
-					     X##mA, (dA))
+#define PUSH_1D(X,o,p,s,mA,dA)                         \
+	PUSH_1(X, DATA_, 1, 0, o, (p), s, X##mA, (dA))
+#define PUSH_2D(X,o,p,s,mA,dA,mB,dB)                   \
+	PUSH_2(X, DATA_, 1, 0, o, (p), s, X##mB, (dB), \
+					  X##mA, (dA))
+#define PUSH_3D(X,o,p,s,mA,dA,mB,dB,mC,dC)             \
+	PUSH_3(X, DATA_, 1, 0, o, (p), s, X##mC, (dC), \
+					  X##mB, (dB), \
+					  X##mA, (dA))
+#define PUSH_4D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD)       \
+	PUSH_4(X, DATA_, 1, 0, o, (p), s, X##mD, (dD), \
+					  X##mC, (dC), \
+					  X##mB, (dB), \
+					  X##mA, (dA))
+#define PUSH_5D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE) \
+	PUSH_5(X, DATA_, 1, 0, o, (p), s, X##mE, (dE), \
+					  X##mD, (dD), \
+					  X##mC, (dC), \
+					  X##mB, (dB), \
+					  X##mA, (dA))
 #define PUSH_6D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE,mF,dF) \
-	PUSH_6(X, DATA_, 1, 1, 0, o, (p), s, X##mF, (dF),    \
-					     X##mE, (dE),    \
-					     X##mD, (dD),    \
-					     X##mC, (dC),    \
-					     X##mB, (dB),    \
-					     X##mA, (dA))
+	PUSH_6(X, DATA_, 1, 0, o, (p), s, X##mF, (dF),       \
+					  X##mE, (dE),       \
+					  X##mD, (dD),       \
+					  X##mC, (dC),       \
+					  X##mB, (dB),       \
+					  X##mA, (dA))
 #define PUSH_7D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE,mF,dF,mG,dG) \
-	PUSH_7(X, DATA_, 1, 1, 0, o, (p), s, X##mG, (dG),          \
-					     X##mF, (dF),          \
-					     X##mE, (dE),          \
-					     X##mD, (dD),          \
-					     X##mC, (dC),          \
-					     X##mB, (dB),          \
-					     X##mA, (dA))
+	PUSH_7(X, DATA_, 1, 0, o, (p), s, X##mG, (dG),             \
+					  X##mF, (dF),             \
+					  X##mE, (dE),             \
+					  X##mD, (dD),             \
+					  X##mC, (dC),             \
+					  X##mB, (dB),             \
+					  X##mA, (dA))
 #define PUSH_8D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE,mF,dF,mG,dG,mH,dH) \
-	PUSH_8(X, DATA_, 1, 1, 0, o, (p), s, X##mH, (dH),                \
-					     X##mG, (dG),                \
-					     X##mF, (dF),                \
-					     X##mE, (dE),                \
-					     X##mD, (dD),                \
-					     X##mC, (dC),                \
-					     X##mB, (dB),                \
-					     X##mA, (dA))
+	PUSH_8(X, DATA_, 1, 0, o, (p), s, X##mH, (dH),                   \
+					  X##mG, (dG),                   \
+					  X##mF, (dF),                   \
+					  X##mE, (dE),                   \
+					  X##mD, (dD),                   \
+					  X##mC, (dC),                   \
+					  X##mB, (dB),                   \
+					  X##mA, (dA))
 #define PUSH_9D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE,mF,dF,mG,dG,mH,dH,mI,dI) \
-	PUSH_9(X, DATA_, 1, 1, 0, o, (p), s, X##mI, (dI),                      \
-					     X##mH, (dH),                      \
-					     X##mG, (dG),                      \
-					     X##mF, (dF),                      \
-					     X##mE, (dE),                      \
-					     X##mD, (dD),                      \
-					     X##mC, (dC),                      \
-					     X##mB, (dB),                      \
-					     X##mA, (dA))
+	PUSH_9(X, DATA_, 1, 0, o, (p), s, X##mI, (dI),                         \
+					  X##mH, (dH),                         \
+					  X##mG, (dG),                         \
+					  X##mF, (dF),                         \
+					  X##mE, (dE),                         \
+					  X##mD, (dD),                         \
+					  X##mC, (dC),                         \
+					  X##mB, (dB),                         \
+					  X##mA, (dA))
 #define PUSH_10D(X,o,p,s,mA,dA,mB,dB,mC,dC,mD,dD,mE,dE,mF,dF,mG,dG,mH,dH,mI,dI,mJ,dJ) \
-	PUSH_10(X, DATA_, 1, 1, 0, o, (p), s, X##mJ, (dJ),                            \
-					      X##mI, (dI),                            \
-					      X##mH, (dH),                            \
-					      X##mG, (dG),                            \
-					      X##mF, (dF),                            \
-					      X##mE, (dE),                            \
-					      X##mD, (dD),                            \
-					      X##mC, (dC),                            \
-					      X##mB, (dB),                            \
-					      X##mA, (dA))
+	PUSH_10(X, DATA_, 1, 0, o, (p), s, X##mJ, (dJ),                               \
+					   X##mI, (dI),                               \
+					   X##mH, (dH),                               \
+					   X##mG, (dG),                               \
+					   X##mF, (dF),                               \
+					   X##mE, (dE),                               \
+					   X##mD, (dD),                               \
+					   X##mC, (dC),                               \
+					   X##mB, (dB),                               \
+					   X##mA, (dA))
 
-#define PUSH_1P(X,o,p,s,mA,dp,ds)                           \
-	PUSH_1(X, DATAp, ds, ds, 0, o, (p), s, X##mA, (dp))
-#define PUSH_2P(X,o,p,s,mA,dA,mB,dp,ds)                     \
-	PUSH_2(X, DATAp, ds, ds, 0, o, (p), s, X##mB, (dp), \
-					       X##mA, (dA))
-#define PUSH_3P(X,o,p,s,mA,dA,mB,dB,mC,dp,ds)               \
-	PUSH_3(X, DATAp, ds, ds, 0, o, (p), s, X##mC, (dp), \
-					       X##mB, (dB), \
-					       X##mA, (dA))
+#define PUSH_1P(X,o,p,s,mA,dp,ds)                       \
+	PUSH_1(X, DATAp, ds, 0, o, (p), s, X##mA, (dp))
+#define PUSH_2P(X,o,p,s,mA,dA,mB,dp,ds)                 \
+	PUSH_2(X, DATAp, ds, 0, o, (p), s, X##mB, (dp), \
+					   X##mA, (dA))
+#define PUSH_3P(X,o,p,s,mA,dA,mB,dB,mC,dp,ds)           \
+	PUSH_3(X, DATAp, ds, 0, o, (p), s, X##mC, (dp), \
+					   X##mB, (dB), \
+					   X##mA, (dA))
 
 #define PUSH_(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,IMPL,...) IMPL
 #define PUSH(A...) PUSH_(A, PUSH_10P, PUSH_10D,          \
-- 
2.27.0

[PATCH AUTOSEL 5.10 05/25] mac80211: 160MHz with extended NSS BW in CSA

[Sasha Levin]

From: Shay Bar <shay.bar@celeno.com>

[ Upstream commit dcf3c8fb32ddbfa3b8227db38aa6746405bd4527 ]

Upon receiving CSA with 160MHz extended NSS BW from associated AP,
STA should set the HT operation_mode based on new_center_freq_seg1
because it is later used as ccfs2 in ieee80211_chandef_vht_oper().

Signed-off-by: Aviad Brikman <aviad.brikman@celeno.com>
Signed-off-by: Shay Bar <shay.bar@celeno.com>
Link: https://lore.kernel.org/r/20201222064714.24888-1-shay.bar@celeno.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/spectmgmt.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index ae1cb2c687224..76747bfdaddd0 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -133,16 +133,20 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (wide_bw_chansw_ie) {
+		u8 new_seg1 = wide_bw_chansw_ie->new_center_freq_seg1;
 		struct ieee80211_vht_operation vht_oper = {
 			.chan_width =
 				wide_bw_chansw_ie->new_channel_width,
 			.center_freq_seg0_idx =
 				wide_bw_chansw_ie->new_center_freq_seg0,
-			.center_freq_seg1_idx =
-				wide_bw_chansw_ie->new_center_freq_seg1,
+			.center_freq_seg1_idx = new_seg1,
 			/* .basic_mcs_set doesn't matter */
 		};
-		struct ieee80211_ht_operation ht_oper = {};
+		struct ieee80211_ht_operation ht_oper = {
+			.operation_mode =
+				cpu_to_le16(new_seg1 <<
+					    IEEE80211_HT_OP_MODE_CCFS2_SHIFT),
+		};
 
 		/* default, for the case of IEEE80211_VHT_CHANWIDTH_USE_HT,
 		 * to the previously parsed chandef
-- 
2.27.0

[PATCH AUTOSEL 5.10 06/25] ASoC: Intel: Skylake: Zero snd_ctl_elem_value

[Sasha Levin]

From: Ricardo Ribalda <ribalda@chromium.org>

[ Upstream commit 1d8fe0648e118fd495a2cb393a34eb8d428e7808 ]

Clear struct snd_ctl_elem_value before calling ->put() to avoid any data
leak.

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210121171644.131059-2-ribalda@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/skylake/skl-topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 40bee10b0c65a..1bde9ce04de33 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -3631,7 +3631,7 @@ static void skl_tplg_complete(struct snd_soc_component *component)
 		sprintf(chan_text, "c%d", mach->mach_params.dmic_num);
 
 		for (i = 0; i < se->items; i++) {
-			struct snd_ctl_elem_value val;
+			struct snd_ctl_elem_value val = {};
 
 			if (strstr(texts[i], chan_text)) {
 				val.value.enumerated.item[0] = i;
-- 
2.27.0

[PATCH AUTOSEL 5.10 07/25] chtls: Fix potential resource leak

[Sasha Levin]

From: Pan Bian <bianpan2016@163.com>

[ Upstream commit b6011966ac6f402847eb5326beee8da3a80405c7 ]

The dst entry should be released if no neighbour is found. Goto label
free_dst to fix the issue. Besides, the check of ndev against NULL is
redundant.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/20210121145738.51091-1-bianpan2016@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c    | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
index 5beec901713fb..a262c949ed76b 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
@@ -1158,11 +1158,9 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
 #endif
 	}
 	if (!n || !n->dev)
-		goto free_sk;
+		goto free_dst;
 
 	ndev = n->dev;
-	if (!ndev)
-		goto free_dst;
 	if (is_vlan_dev(ndev))
 		ndev = vlan_dev_real_dev(ndev);
 
@@ -1249,7 +1247,8 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
 free_csk:
 	chtls_sock_release(&csk->kref);
 free_dst:
-	neigh_release(n);
+	if (n)
+		neigh_release(n);
 	dst_release(dst);
 free_sk:
 	inet_csk_prepare_forced_close(newsk);
-- 
2.27.0

[PATCH AUTOSEL 5.10 08/25] pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()

[Sasha Levin]

From: Trond Myklebust <trond.myklebust@hammerspace.com>

[ Upstream commit 08bd8dbe88825760e953759d7ec212903a026c75 ]

If the server returns a new stateid that does not match the one in our
cache, then try to return the one we hold instead of just invalidating
it on the client side. This ensures that both client and server will
agree that the stateid is invalid.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/pnfs.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 471bfa273dade..cbe7a82d55824 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2399,7 +2399,13 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
 		 * We got an entirely new state ID.  Mark all segments for the
 		 * inode invalid, and retry the layoutget
 		 */
-		pnfs_mark_layout_stateid_invalid(lo, &free_me);
+		struct pnfs_layout_range range = {
+			.iomode = IOMODE_ANY,
+			.length = NFS4_MAX_UINT64,
+		};
+		pnfs_set_plh_return_info(lo, IOMODE_ANY, 0);
+		pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs,
+						&range, 0);
 		goto out_forget;
 	}
 
-- 
2.27.0

[PATCH AUTOSEL 5.10 09/25] pNFS/NFSv4: Improve rejection of out-of-order layouts

[Sasha Levin]

From: Trond Myklebust <trond.myklebust@hammerspace.com>

[ Upstream commit d29b468da4f940bd2bff2628ba8d2d652671d244 ]

If a layoutget ends up being reordered w.r.t. a layoutreturn, e.g. due
to a layoutget-on-open not knowing a priori which file to lock, then we
must assume the layout is no longer being considered valid state by the
server.
Incrementally improve our ability to reject such states by using the
cached old stateid in conjunction with the plh_barrier to try to
identify them.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/pnfs.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index cbe7a82d55824..bbf1d34d79a44 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -994,7 +994,7 @@ pnfs_layout_stateid_blocked(const struct pnfs_layout_hdr *lo,
 {
 	u32 seqid = be32_to_cpu(stateid->seqid);
 
-	return !pnfs_seqid_is_newer(seqid, lo->plh_barrier);
+	return !pnfs_seqid_is_newer(seqid, lo->plh_barrier) && lo->plh_barrier;
 }
 
 /* lget is set to 1 if called from inside send_layoutget call chain */
@@ -1910,6 +1910,11 @@ static void nfs_layoutget_end(struct pnfs_layout_hdr *lo)
 		wake_up_var(&lo->plh_outstanding);
 }
 
+static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo)
+{
+	return test_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags);
+}
+
 static void pnfs_clear_first_layoutget(struct pnfs_layout_hdr *lo)
 {
 	unsigned long *bitlock = &lo->plh_flags;
@@ -2384,17 +2389,17 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
 		goto out_forget;
 	}
 
-	if (!pnfs_layout_is_valid(lo)) {
-		/* We have a completely new layout */
-		pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, true);
-	} else if (nfs4_stateid_match_other(&lo->plh_stateid, &res->stateid)) {
+	if (nfs4_stateid_match_other(&lo->plh_stateid, &res->stateid)) {
 		/* existing state ID, make sure the sequence number matches. */
 		if (pnfs_layout_stateid_blocked(lo, &res->stateid)) {
+			if (!pnfs_layout_is_valid(lo) &&
+			    pnfs_is_first_layoutget(lo))
+				lo->plh_barrier = 0;
 			dprintk("%s forget reply due to sequence\n", __func__);
 			goto out_forget;
 		}
 		pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, false);
-	} else {
+	} else if (pnfs_layout_is_valid(lo)) {
 		/*
 		 * We got an entirely new state ID.  Mark all segments for the
 		 * inode invalid, and retry the layoutget
@@ -2407,6 +2412,11 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
 		pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs,
 						&range, 0);
 		goto out_forget;
+	} else {
+		/* We have a completely new layout */
+		if (!pnfs_is_first_layoutget(lo))
+			goto out_forget;
+		pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, true);
 	}
 
 	pnfs_get_lseg(lseg);
-- 
2.27.0

[PATCH AUTOSEL 5.10 10/25] ALSA: hda: intel-dsp-config: add PCI id for TGL-H

[Sasha Levin]

From: Bard Liao <bard.liao@intel.com>

[ Upstream commit c5b5ff607d6fe5f4284acabd07066f96ecf96ac4 ]

Adding PCI id for TGL-H. Like for other TGL platforms, SOF is used if
Soundwire codecs or PCH-DMIC is detected.

Signed-off-by: Bard Liao <bard.liao@intel.com>
Reviewed-by: Xiuli Pan <xiuli.pan@intel.com>
Reviewed-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210125083051.828205-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 1c5114dedda92..fe49e9a97f0ec 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -306,6 +306,10 @@ static const struct config_entry config_table[] = {
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0xa0c8,
 	},
+	{
+		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
+		.device = 0x43c8,
+	},
 #endif
 
 /* Elkhart Lake */
-- 
2.27.0

[PATCH AUTOSEL 5.10 11/25] ASoC: ak4458: correct reset polarity

[Sasha Levin]

From: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>

[ Upstream commit e953daeb68b1abd8a7d44902786349fdeef5c297 ]

Reset (aka power off) happens when the reset gpio is made active.
Change function name to ak4458_reset to match devicetree property "reset-gpios"

Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/ce650f47-4ff6-e486-7846-cc3d033f3601@blennerhassett.gen.nz
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/ak4458.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c
index 1010c9ee2e836..472caad17012e 100644
--- a/sound/soc/codecs/ak4458.c
+++ b/sound/soc/codecs/ak4458.c
@@ -595,18 +595,10 @@ static struct snd_soc_dai_driver ak4497_dai = {
 	.ops = &ak4458_dai_ops,
 };
 
-static void ak4458_power_off(struct ak4458_priv *ak4458)
+static void ak4458_reset(struct ak4458_priv *ak4458, bool active)
 {
 	if (ak4458->reset_gpiod) {
-		gpiod_set_value_cansleep(ak4458->reset_gpiod, 0);
-		usleep_range(1000, 2000);
-	}
-}
-
-static void ak4458_power_on(struct ak4458_priv *ak4458)
-{
-	if (ak4458->reset_gpiod) {
-		gpiod_set_value_cansleep(ak4458->reset_gpiod, 1);
+		gpiod_set_value_cansleep(ak4458->reset_gpiod, active);
 		usleep_range(1000, 2000);
 	}
 }
@@ -620,7 +612,7 @@ static int ak4458_init(struct snd_soc_component *component)
 	if (ak4458->mute_gpiod)
 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
 
-	ak4458_power_on(ak4458);
+	ak4458_reset(ak4458, false);
 
 	ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
 			    0x80, 0x80);   /* ACKS bit = 1; 10000000 */
@@ -650,7 +642,7 @@ static void ak4458_remove(struct snd_soc_component *component)
 {
 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
 
-	ak4458_power_off(ak4458);
+	ak4458_reset(ak4458, true);
 }
 
 #ifdef CONFIG_PM
@@ -660,7 +652,7 @@ static int __maybe_unused ak4458_runtime_suspend(struct device *dev)
 
 	regcache_cache_only(ak4458->regmap, true);
 
-	ak4458_power_off(ak4458);
+	ak4458_reset(ak4458, true);
 
 	if (ak4458->mute_gpiod)
 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
@@ -685,8 +677,8 @@ static int __maybe_unused ak4458_runtime_resume(struct device *dev)
 	if (ak4458->mute_gpiod)
 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
 
-	ak4458_power_off(ak4458);
-	ak4458_power_on(ak4458);
+	ak4458_reset(ak4458, true);
+	ak4458_reset(ak4458, false);
 
 	regcache_cache_only(ak4458->regmap, false);
 	regcache_mark_dirty(ak4458->regmap);
-- 
2.27.0

[PATCH AUTOSEL 5.10 12/25] ASoC: Intel: sof_sdw: set proper flags for Dell TGL-H SKU 0A5E

[Sasha Levin]

From: Libin Yang <libin.yang@intel.com>

[ Upstream commit 9ad9bc59dde106e56dd59ce2bec7c1b08e1f0eb4 ]

Add flag "SOF_RT711_JD_SRC_JD2", flag "SOF_RT715_DAI_ID_FIX"
and "SOF_SDW_FOUR_SPK" to the Dell TGL-H based SKU "0A5E".

Signed-off-by: Libin Yang <libin.yang@intel.com>
Co-developed-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210125081117.814488-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/sof_sdw.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index b29946eb43551..a8d43c87cb5a2 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -57,6 +57,16 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
 		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
 					SOF_RT715_DAI_ID_FIX),
 	},
+	{
+		.callback = sof_sdw_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A5E")
+		},
+		.driver_data = (void *)(SOF_RT711_JD_SRC_JD2 |
+					SOF_RT715_DAI_ID_FIX |
+					SOF_SDW_FOUR_SPK),
+	},
 	{
 		.callback = sof_sdw_quirk_cb,
 		.matches = {
-- 
2.27.0

[PATCH AUTOSEL 5.10 13/25] iwlwifi: mvm: skip power command when unbinding vif during CSA

[Sasha Levin]

From: Sara Sharon <sara.sharon@intel.com>

[ Upstream commit bf544e9aa570034e094a8a40d5f9e1e2c4916d18 ]

In the new CSA flow, we remain associated during CSA, but
still do a unbind-bind to the vif. However, sending the power
command right after when vif is unbound but still associated
causes FW to assert (0x3400) since it cannot tell the LMAC id.

Just skip this command, we will send it again in a bit, when
assigning the new context.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.64a2254ac5c3.Iaa3a9050bf3d7c9cd5beaf561e932e6defc12ec3@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index b627e7da7ac9d..d42165559df6e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -4249,6 +4249,9 @@ static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
 	iwl_mvm_binding_remove_vif(mvm, vif);
 
 out:
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
+	    switching_chanctx)
+		return;
 	mvmvif->phy_ctxt = NULL;
 	iwl_mvm_power_update_mac(mvm);
 }
-- 
2.27.0

[PATCH AUTOSEL 5.10 14/25] iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 5c56d862c749669d45c256f581eac4244be00d4d ]

We need to take the mutex to call iwl_mvm_get_sync_time(), do it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.4bb5ccf881a6.I62973cbb081e80aa5b0447a5c3b9c3251a65cf6b@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index f043eefabb4ec..7b1d2dac6ceb8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -514,7 +514,10 @@ static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file,
 	const size_t bufsz = sizeof(buf);
 	int pos = 0;
 
+	mutex_lock(&mvm->mutex);
 	iwl_mvm_get_sync_time(mvm, &curr_gp2, &curr_os);
+	mutex_unlock(&mvm->mutex);
+
 	do_div(curr_os, NSEC_PER_USEC);
 	diff = curr_os - curr_gp2;
 	pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff);
-- 
2.27.0

[PATCH AUTOSEL 5.10 15/25] iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap

[Sasha Levin]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

[ Upstream commit 98c7d21f957b10d9c07a3a60a3a5a8f326a197e5 ]

I hit a NULL pointer exception in this function when the
init flow went really bad.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.2e8da9f2c132.I0234d4b8ddaf70aaa5028a20c863255e05bc1f84@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 966be5689d63a..ed54d04e43964 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -299,6 +299,11 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 
+	if (!txq) {
+		IWL_ERR(trans, "Trying to free a queue that wasn't allocated?\n");
+		return;
+	}
+
 	spin_lock_bh(&txq->lock);
 	while (txq->write_ptr != txq->read_ptr) {
 		IWL_DEBUG_TX_REPLY(trans, "Q %d Free %d\n",
-- 
2.27.0

[PATCH AUTOSEL 5.10 16/25] iwlwifi: pcie: fix context info memory leak

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 2d6bc752cc2806366d9a4fd577b3f6c1f7a7e04e ]

If the image loader allocation fails, we leak all the previously
allocated memory. Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210115130252.97172cbaa67c.I3473233d0ad01a71aa9400832fb2b9f494d88a11@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c  | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
index 5512e3c630c31..2078b7b0bb7f6 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
@@ -236,8 +236,10 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
 	/* Allocate IML */
 	iml_img = dma_alloc_coherent(trans->dev, trans->iml_len,
 				     &trans_pcie->iml_dma_addr, GFP_KERNEL);
-	if (!iml_img)
-		return -ENOMEM;
+	if (!iml_img) {
+		ret = -ENOMEM;
+		goto err_free_ctxt_info;
+	}
 
 	memcpy(iml_img, trans->iml, trans->iml_len);
 
@@ -279,6 +281,11 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
 
 	return 0;
 
+err_free_ctxt_info:
+	dma_free_coherent(trans->dev, sizeof(*trans_pcie->ctxt_info_gen3),
+			  trans_pcie->ctxt_info_gen3,
+			  trans_pcie->ctxt_info_dma_addr);
+	trans_pcie->ctxt_info_gen3 = NULL;
 err_free_prph_info:
 	dma_free_coherent(trans->dev,
 			  sizeof(*prph_info),
-- 
2.27.0

[PATCH AUTOSEL 5.10 17/25] iwlwifi: mvm: invalidate IDs of internal stations at mvm start

[Sasha Levin]

From: Gregory Greenman <gregory.greenman@intel.com>

[ Upstream commit e223e42aac30bf81f9302c676cdf58cf2bf36950 ]

Having sta_id not set for aux_sta and snif_sta can potentially lead to a
hard to debug issue in case remove station is called without an add. In
this case sta_id 0, an unrelated regular station, will be removed.

In fact, we do have a FW assert that occures rarely and from the debug
data analysis it looks like sta_id 0 is removed by mistake, though it's
hard to pinpoint the exact flow. The WARN_ON in this patch should help
to find it.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.5dc6dd9b22d5.I2add1b5ad24d0d0a221de79d439c09f88fcaf15d@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 4 ++++
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0d1118f66f0d5..cea8e397fe0f2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -845,6 +845,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (!mvm->scan_cmd)
 		goto out_free;
 
+	/* invalidate ids to prevent accidental removal of sta_id 0 */
+	mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
+	mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
+
 	/* Set EBS as successful as long as not stated otherwise by the FW. */
 	mvm->last_ebs_successful = true;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 799d8219463cb..a66a5c19474a9 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -2103,6 +2103,9 @@ int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA))
+		return -EINVAL;
+
 	iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0);
 	ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id);
 	if (ret)
@@ -2117,6 +2120,9 @@ int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA))
+		return -EINVAL;
+
 	iwl_mvm_disable_txq(mvm, NULL, mvm->aux_queue, IWL_MAX_TID_COUNT, 0);
 	ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id);
 	if (ret)
-- 
2.27.0

[PATCH AUTOSEL 5.10 18/25] iwlwifi: pcie: add rules to match Qu with Hr2

[Sasha Levin]

From: Luca Coelho <luciano.coelho@intel.com>

[ Upstream commit 16062c12edb8ed2dfb15e6a914ff4edf858ab9e0 ]

Until now we have been relying on matching the PCI ID and subsystem
device ID in order to recognize Qu devices with Hr2.  Add rules to
match these devices, so that we don't have to add a new rule for every
new ID we get.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.591ce253ddd8.Ia4b9cc2c535625890c6d6b560db97ee9f2d5ca3b@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/cfg/22000.c    | 25 +++++++++++++++++++
 .../net/wireless/intel/iwlwifi/iwl-config.h   |  3 +++
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 10 ++++++++
 3 files changed, 38 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
index d2bbe6a735142..92c50efd48fc3 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
@@ -358,6 +358,7 @@ const struct iwl_cfg_trans_params iwl_ma_trans_cfg = {
 const char iwl_ax101_name[] = "Intel(R) Wi-Fi 6 AX101";
 const char iwl_ax200_name[] = "Intel(R) Wi-Fi 6 AX200 160MHz";
 const char iwl_ax201_name[] = "Intel(R) Wi-Fi 6 AX201 160MHz";
+const char iwl_ax203_name[] = "Intel(R) Wi-Fi 6 AX203";
 const char iwl_ax211_name[] = "Intel(R) Wi-Fi 6 AX211 160MHz";
 const char iwl_ax411_name[] = "Intel(R) Wi-Fi 6 AX411 160MHz";
 const char iwl_ma_name[] = "Intel(R) Wi-Fi 6";
@@ -384,6 +385,18 @@ const struct iwl_cfg iwl_qu_b0_hr1_b0 = {
 	.num_rbds = IWL_NUM_RBDS_22000_HE,
 };
 
+const struct iwl_cfg iwl_qu_b0_hr_b0 = {
+	.fw_name_pre = IWL_QU_B_HR_B_FW_PRE,
+	IWL_DEVICE_22500,
+	/*
+	 * This device doesn't support receiving BlockAck with a large bitmap
+	 * so we need to restrict the size of transmitted aggregation to the
+	 * HT size; mac80211 would otherwise pick the HE max (256) by default.
+	 */
+	.max_tx_agg_size = IEEE80211_MAX_AMPDU_BUF_HT,
+	.num_rbds = IWL_NUM_RBDS_22000_HE,
+};
+
 const struct iwl_cfg iwl_ax201_cfg_qu_hr = {
 	.name = "Intel(R) Wi-Fi 6 AX201 160MHz",
 	.fw_name_pre = IWL_QU_B_HR_B_FW_PRE,
@@ -410,6 +423,18 @@ const struct iwl_cfg iwl_qu_c0_hr1_b0 = {
 	.num_rbds = IWL_NUM_RBDS_22000_HE,
 };
 
+const struct iwl_cfg iwl_qu_c0_hr_b0 = {
+	.fw_name_pre = IWL_QU_C_HR_B_FW_PRE,
+	IWL_DEVICE_22500,
+	/*
+	 * This device doesn't support receiving BlockAck with a large bitmap
+	 * so we need to restrict the size of transmitted aggregation to the
+	 * HT size; mac80211 would otherwise pick the HE max (256) by default.
+	 */
+	.max_tx_agg_size = IEEE80211_MAX_AMPDU_BUF_HT,
+	.num_rbds = IWL_NUM_RBDS_22000_HE,
+};
+
 const struct iwl_cfg iwl_ax201_cfg_qu_c0_hr_b0 = {
 	.name = "Intel(R) Wi-Fi 6 AX201 160MHz",
 	.fw_name_pre = IWL_QU_C_HR_B_FW_PRE,
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-config.h b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
index 580b07a43856d..52fb9963d7cf8 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
@@ -544,6 +544,7 @@ extern const char iwl9260_killer_1550_name[];
 extern const char iwl9560_killer_1550i_name[];
 extern const char iwl9560_killer_1550s_name[];
 extern const char iwl_ax200_name[];
+extern const char iwl_ax203_name[];
 extern const char iwl_ax201_name[];
 extern const char iwl_ax101_name[];
 extern const char iwl_ax200_killer_1650w_name[];
@@ -627,6 +628,8 @@ extern const struct iwl_cfg iwl9560_2ac_cfg_soc;
 extern const struct iwl_cfg iwl_qu_b0_hr1_b0;
 extern const struct iwl_cfg iwl_qu_c0_hr1_b0;
 extern const struct iwl_cfg iwl_quz_a0_hr1_b0;
+extern const struct iwl_cfg iwl_qu_b0_hr_b0;
+extern const struct iwl_cfg iwl_qu_c0_hr_b0;
 extern const struct iwl_cfg iwl_ax200_cfg_cc;
 extern const struct iwl_cfg iwl_ax201_cfg_qu_hr;
 extern const struct iwl_cfg iwl_ax201_cfg_qu_hr;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 7b5ece380fbfb..2823a1e81656d 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -966,6 +966,11 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
 		      IWL_CFG_RF_TYPE_HR1, IWL_CFG_ANY,
 		      IWL_CFG_ANY, IWL_CFG_ANY,
 		      iwl_qu_b0_hr1_b0, iwl_ax101_name),
+	_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
+		      IWL_CFG_MAC_TYPE_QU, SILICON_C_STEP,
+		      IWL_CFG_RF_TYPE_HR2, IWL_CFG_ANY,
+		      IWL_CFG_ANY, IWL_CFG_ANY,
+		      iwl_qu_b0_hr_b0, iwl_ax203_name),
 
 	/* Qu C step */
 	_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
@@ -973,6 +978,11 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
 		      IWL_CFG_RF_TYPE_HR1, IWL_CFG_ANY,
 		      IWL_CFG_ANY, IWL_CFG_ANY,
 		      iwl_qu_c0_hr1_b0, iwl_ax101_name),
+	_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
+		      IWL_CFG_MAC_TYPE_QU, SILICON_C_STEP,
+		      IWL_CFG_RF_TYPE_HR2, IWL_CFG_ANY,
+		      IWL_CFG_ANY, IWL_CFG_ANY,
+		      iwl_qu_c0_hr_b0, iwl_ax203_name),
 
 	/* QuZ */
 	_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
-- 
2.27.0

[PATCH AUTOSEL 5.10 19/25] iwlwifi: mvm: guard against device removal in reprobe

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 7a21b1d4a728a483f07c638ccd8610d4b4f12684 ]

If we get into a problem severe enough to attempt a reprobe,
we schedule a worker to do that. However, if the problem gets
more severe and the device is actually destroyed before this
worker has a chance to run, we use a free device. Bump up the
reference count of the device until the worker runs to avoid
this situation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.871f0892e4b2.I94819e11afd68d875f3e242b98bef724b8236f1e@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index cea8e397fe0f2..cb83490f1016f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1249,6 +1249,7 @@ static void iwl_mvm_reprobe_wk(struct work_struct *wk)
 	reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
 	if (device_reprobe(reprobe->dev))
 		dev_err(reprobe->dev, "reprobe failed!\n");
+	put_device(reprobe->dev);
 	kfree(reprobe);
 	module_put(THIS_MODULE);
 }
@@ -1299,7 +1300,7 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 			module_put(THIS_MODULE);
 			return;
 		}
-		reprobe->dev = mvm->trans->dev;
+		reprobe->dev = get_device(mvm->trans->dev);
 		INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
 		schedule_work(&reprobe->work);
 	} else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
-- 
2.27.0

[PATCH AUTOSEL 5.10 20/25] iwlwifi: queue: bail out on invalid freeing

[Sasha Levin]

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 0bed6a2a14afaae240cc431e49c260568488b51c ]

If we find an entry without an SKB, we currently continue, but
that will just result in an infinite loop since we won't increment
the read pointer, and will try the same thing over and over again.
Fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.abe2dedcc3ac.Ia6b03f9eeb617fd819e56dd5376f4bb8edc7b98a@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/queue/tx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
index af0b27a68d84d..9181221a2434d 100644
--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
@@ -887,10 +887,8 @@ void iwl_txq_gen2_unmap(struct iwl_trans *trans, int txq_id)
 			int idx = iwl_txq_get_cmd_index(txq, txq->read_ptr);
 			struct sk_buff *skb = txq->entries[idx].skb;
 
-			if (WARN_ON_ONCE(!skb))
-				continue;
-
-			iwl_txq_free_tso_page(trans, skb);
+			if (!WARN_ON_ONCE(!skb))
+				iwl_txq_free_tso_page(trans, skb);
 		}
 		iwl_txq_gen2_free_tfd(trans, txq);
 		txq->read_ptr = iwl_txq_inc_wrap(trans, txq->read_ptr);
-- 
2.27.0

[PATCH AUTOSEL 5.10 21/25] SUNRPC: Move simple_get_bytes and simple_get_netobj into private header

[Sasha Levin]

From: Dave Wysochanski <dwysocha@redhat.com>

[ Upstream commit ba6dfce47c4d002d96cd02a304132fca76981172 ]

Remove duplicated helper functions to parse opaque XDR objects
and place inside new file net/sunrpc/auth_gss/auth_gss_internal.h.
In the new file carry the license and copyright from the source file
net/sunrpc/auth_gss/auth_gss.c.  Finally, update the comment inside
include/linux/sunrpc/xdr.h since lockd is not the only user of
struct xdr_netobj.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sunrpc/xdr.h              |  3 +-
 net/sunrpc/auth_gss/auth_gss.c          | 30 +-----------------
 net/sunrpc/auth_gss/auth_gss_internal.h | 42 +++++++++++++++++++++++++
 net/sunrpc/auth_gss/gss_krb5_mech.c     | 31 ++----------------
 4 files changed, 46 insertions(+), 60 deletions(-)
 create mode 100644 net/sunrpc/auth_gss/auth_gss_internal.h

diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 9548d075e06da..b998e4b736912 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -25,8 +25,7 @@ struct rpc_rqst;
 #define XDR_QUADLEN(l)		(((l) + 3) >> 2)
 
 /*
- * Generic opaque `network object.' At the kernel level, this type
- * is used only by lockd.
+ * Generic opaque `network object.'
  */
 #define XDR_MAX_NETOBJ		1024
 struct xdr_netobj {
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 4ecc2a9595674..5f42aa5fc6128 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -29,6 +29,7 @@
 #include <linux/uaccess.h>
 #include <linux/hashtable.h>
 
+#include "auth_gss_internal.h"
 #include "../netns.h"
 
 #include <trace/events/rpcgss.h>
@@ -125,35 +126,6 @@ gss_cred_set_ctx(struct rpc_cred *cred, struct gss_cl_ctx *ctx)
 	clear_bit(RPCAUTH_CRED_NEW, &cred->cr_flags);
 }
 
-static const void *
-simple_get_bytes(const void *p, const void *end, void *res, size_t len)
-{
-	const void *q = (const void *)((const char *)p + len);
-	if (unlikely(q > end || q < p))
-		return ERR_PTR(-EFAULT);
-	memcpy(res, p, len);
-	return q;
-}
-
-static inline const void *
-simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest)
-{
-	const void *q;
-	unsigned int len;
-
-	p = simple_get_bytes(p, end, &len, sizeof(len));
-	if (IS_ERR(p))
-		return p;
-	q = (const void *)((const char *)p + len);
-	if (unlikely(q > end || q < p))
-		return ERR_PTR(-EFAULT);
-	dest->data = kmemdup(p, len, GFP_NOFS);
-	if (unlikely(dest->data == NULL))
-		return ERR_PTR(-ENOMEM);
-	dest->len = len;
-	return q;
-}
-
 static struct gss_cl_ctx *
 gss_cred_get_ctx(struct rpc_cred *cred)
 {
diff --git a/net/sunrpc/auth_gss/auth_gss_internal.h b/net/sunrpc/auth_gss/auth_gss_internal.h
new file mode 100644
index 0000000000000..c5603242b54bf
--- /dev/null
+++ b/net/sunrpc/auth_gss/auth_gss_internal.h
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * linux/net/sunrpc/auth_gss/auth_gss_internal.h
+ *
+ * Internal definitions for RPCSEC_GSS client authentication
+ *
+ * Copyright (c) 2000 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ */
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/sunrpc/xdr.h>
+
+static inline const void *
+simple_get_bytes(const void *p, const void *end, void *res, size_t len)
+{
+	const void *q = (const void *)((const char *)p + len);
+	if (unlikely(q > end || q < p))
+		return ERR_PTR(-EFAULT);
+	memcpy(res, p, len);
+	return q;
+}
+
+static inline const void *
+simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest)
+{
+	const void *q;
+	unsigned int len;
+
+	p = simple_get_bytes(p, end, &len, sizeof(len));
+	if (IS_ERR(p))
+		return p;
+	q = (const void *)((const char *)p + len);
+	if (unlikely(q > end || q < p))
+		return ERR_PTR(-EFAULT);
+	dest->data = kmemdup(p, len, GFP_NOFS);
+	if (unlikely(dest->data == NULL))
+		return ERR_PTR(-ENOMEM);
+	dest->len = len;
+	return q;
+}
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index ae9acf3a73898..1c092b05c2bba 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -21,6 +21,8 @@
 #include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/gss_krb5_enctypes.h>
 
+#include "auth_gss_internal.h"
+
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 # define RPCDBG_FACILITY	RPCDBG_AUTH
 #endif
@@ -143,35 +145,6 @@ get_gss_krb5_enctype(int etype)
 	return NULL;
 }
 
-static const void *
-simple_get_bytes(const void *p, const void *end, void *res, int len)
-{
-	const void *q = (const void *)((const char *)p + len);
-	if (unlikely(q > end || q < p))
-		return ERR_PTR(-EFAULT);
-	memcpy(res, p, len);
-	return q;
-}
-
-static const void *
-simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)
-{
-	const void *q;
-	unsigned int len;
-
-	p = simple_get_bytes(p, end, &len, sizeof(len));
-	if (IS_ERR(p))
-		return p;
-	q = (const void *)((const char *)p + len);
-	if (unlikely(q > end || q < p))
-		return ERR_PTR(-EFAULT);
-	res->data = kmemdup(p, len, GFP_NOFS);
-	if (unlikely(res->data == NULL))
-		return ERR_PTR(-ENOMEM);
-	res->len = len;
-	return q;
-}
-
 static inline const void *
 get_key(const void *p, const void *end,
 	struct krb5_ctx *ctx, struct crypto_sync_skcipher **res)
-- 
2.27.0

[PATCH AUTOSEL 5.10 22/25] SUNRPC: Handle 0 length opaque XDR object data properly

[Sasha Levin]

From: Dave Wysochanski <dwysocha@redhat.com>

[ Upstream commit e4a7d1f7707eb44fd953a31dd59eff82009d879c ]

When handling an auth_gss downcall, it's possible to get 0-length
opaque object for the acceptor.  In the case of a 0-length XDR
object, make sure simple_get_netobj() fills in dest->data = NULL,
and does not continue to kmemdup() which will set
dest->data = ZERO_SIZE_PTR for the acceptor.

The trace event code can handle NULL but not ZERO_SIZE_PTR for a
string, and so without this patch the rpcgss_context trace event
will crash the kernel as follows:

[  162.887992] BUG: kernel NULL pointer dereference, address: 0000000000000010
[  162.898693] #PF: supervisor read access in kernel mode
[  162.900830] #PF: error_code(0x0000) - not-present page
[  162.902940] PGD 0 P4D 0
[  162.904027] Oops: 0000 [#1] SMP PTI
[  162.905493] CPU: 4 PID: 4321 Comm: rpc.gssd Kdump: loaded Not tainted 5.10.0 #133
[  162.908548] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[  162.910978] RIP: 0010:strlen+0x0/0x20
[  162.912505] Code: 48 89 f9 74 09 48 83 c1 01 80 39 00 75 f7 31 d2 44 0f b6 04 16 44 88 04 11 48 83 c2 01 45 84 c0 75 ee c3 0f 1f 80 00 00 00 00 <80> 3f 00 74 10 48 89 f8 48 83 c0 01 80 38 00 75 f7 48 29 f8 c3 31
[  162.920101] RSP: 0018:ffffaec900c77d90 EFLAGS: 00010202
[  162.922263] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000fffde697
[  162.925158] RDX: 000000000000002f RSI: 0000000000000080 RDI: 0000000000000010
[  162.928073] RBP: 0000000000000010 R08: 0000000000000e10 R09: 0000000000000000
[  162.930976] R10: ffff8e698a590cb8 R11: 0000000000000001 R12: 0000000000000e10
[  162.933883] R13: 00000000fffde697 R14: 000000010034d517 R15: 0000000000070028
[  162.936777] FS:  00007f1e1eb93700(0000) GS:ffff8e6ab7d00000(0000) knlGS:0000000000000000
[  162.940067] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  162.942417] CR2: 0000000000000010 CR3: 0000000104eba000 CR4: 00000000000406e0
[  162.945300] Call Trace:
[  162.946428]  trace_event_raw_event_rpcgss_context+0x84/0x140 [auth_rpcgss]
[  162.949308]  ? __kmalloc_track_caller+0x35/0x5a0
[  162.951224]  ? gss_pipe_downcall+0x3a3/0x6a0 [auth_rpcgss]
[  162.953484]  gss_pipe_downcall+0x585/0x6a0 [auth_rpcgss]
[  162.955953]  rpc_pipe_write+0x58/0x70 [sunrpc]
[  162.957849]  vfs_write+0xcb/0x2c0
[  162.959264]  ksys_write+0x68/0xe0
[  162.960706]  do_syscall_64+0x33/0x40
[  162.962238]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  162.964346] RIP: 0033:0x7f1e1f1e57df

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sunrpc/auth_gss/auth_gss_internal.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/sunrpc/auth_gss/auth_gss_internal.h b/net/sunrpc/auth_gss/auth_gss_internal.h
index c5603242b54bf..f6d9631bd9d00 100644
--- a/net/sunrpc/auth_gss/auth_gss_internal.h
+++ b/net/sunrpc/auth_gss/auth_gss_internal.h
@@ -34,9 +34,12 @@ simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest)
 	q = (const void *)((const char *)p + len);
 	if (unlikely(q > end || q < p))
 		return ERR_PTR(-EFAULT);
-	dest->data = kmemdup(p, len, GFP_NOFS);
-	if (unlikely(dest->data == NULL))
-		return ERR_PTR(-ENOMEM);
+	if (len) {
+		dest->data = kmemdup(p, len, GFP_NOFS);
+		if (unlikely(dest->data == NULL))
+			return ERR_PTR(-ENOMEM);
+	} else
+		dest->data = NULL;
 	dest->len = len;
 	return q;
 }
-- 
2.27.0

[PATCH AUTOSEL 5.10 23/25] i2c: mediatek: Move suspend and resume handling to NOIRQ phase

[Sasha Levin]

From: Qii Wang <qii.wang@mediatek.com>

[ Upstream commit de96c3943f591018727b862f51953c1b6c55bcc3 ]

Some i2c device driver indirectly uses I2C driver when it is now
being suspended. The i2c devices driver is suspended during the
NOIRQ phase and this cannot be changed due to other dependencies.
Therefore, we also need to move the suspend handling for the I2C
controller driver to the NOIRQ phase as well.

Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 0818d3e507347..2ffd2f354d0ae 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -1275,7 +1275,8 @@ static int mtk_i2c_probe(struct platform_device *pdev)
 	mtk_i2c_clock_disable(i2c);
 
 	ret = devm_request_irq(&pdev->dev, irq, mtk_i2c_irq,
-			       IRQF_TRIGGER_NONE, I2C_DRV_NAME, i2c);
+			       IRQF_NO_SUSPEND | IRQF_TRIGGER_NONE,
+			       I2C_DRV_NAME, i2c);
 	if (ret < 0) {
 		dev_err(&pdev->dev,
 			"Request I2C IRQ %d fail\n", irq);
@@ -1302,7 +1303,16 @@ static int mtk_i2c_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int mtk_i2c_resume(struct device *dev)
+static int mtk_i2c_suspend_noirq(struct device *dev)
+{
+	struct mtk_i2c *i2c = dev_get_drvdata(dev);
+
+	i2c_mark_adapter_suspended(&i2c->adap);
+
+	return 0;
+}
+
+static int mtk_i2c_resume_noirq(struct device *dev)
 {
 	int ret;
 	struct mtk_i2c *i2c = dev_get_drvdata(dev);
@@ -1317,12 +1327,15 @@ static int mtk_i2c_resume(struct device *dev)
 
 	mtk_i2c_clock_disable(i2c);
 
+	i2c_mark_adapter_resumed(&i2c->adap);
+
 	return 0;
 }
 #endif
 
 static const struct dev_pm_ops mtk_i2c_pm = {
-	SET_SYSTEM_SLEEP_PM_OPS(NULL, mtk_i2c_resume)
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_i2c_suspend_noirq,
+				      mtk_i2c_resume_noirq)
 };
 
 static struct platform_driver mtk_i2c_driver = {
-- 
2.27.0

[PATCH AUTOSEL 5.10 24/25] blk-cgroup: Use cond_resched() when destroy blkgs

[Sasha Levin]

From: Baolin Wang <baolin.wang@linux.alibaba.com>

[ Upstream commit 6c635caef410aa757befbd8857c1eadde5cc22ed ]

On !PREEMPT kernel, we can get below softlockup when doing stress
testing with creating and destroying block cgroup repeatly. The
reason is it may take a long time to acquire the queue's lock in
the loop of blkcg_destroy_blkgs(), or the system can accumulate a
huge number of blkgs in pathological cases. We can add a need_resched()
check on each loop and release locks and do cond_resched() if true
to avoid this issue, since the blkcg_destroy_blkgs() is not called
from atomic contexts.

[ 4757.010308] watchdog: BUG: soft lockup - CPU#11 stuck for 94s!
[ 4757.010698] Call trace:
[ 4757.010700]  blkcg_destroy_blkgs+0x68/0x150
[ 4757.010701]  cgwb_release_workfn+0x104/0x158
[ 4757.010702]  process_one_work+0x1bc/0x3f0
[ 4757.010704]  worker_thread+0x164/0x468
[ 4757.010705]  kthread+0x108/0x138

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-cgroup.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 54fbe1e80cc41..f13688c4b9317 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1017,6 +1017,8 @@ static void blkcg_css_offline(struct cgroup_subsys_state *css)
  */
 void blkcg_destroy_blkgs(struct blkcg *blkcg)
 {
+	might_sleep();
+
 	spin_lock_irq(&blkcg->lock);
 
 	while (!hlist_empty(&blkcg->blkg_list)) {
@@ -1024,14 +1026,20 @@ void blkcg_destroy_blkgs(struct blkcg *blkcg)
 						struct blkcg_gq, blkcg_node);
 		struct request_queue *q = blkg->q;
 
-		if (spin_trylock(&q->queue_lock)) {
-			blkg_destroy(blkg);
-			spin_unlock(&q->queue_lock);
-		} else {
+		if (need_resched() || !spin_trylock(&q->queue_lock)) {
+			/*
+			 * Given that the system can accumulate a huge number
+			 * of blkgs in pathological cases, check to see if we
+			 * need to rescheduling to avoid softlockup.
+			 */
 			spin_unlock_irq(&blkcg->lock);
-			cpu_relax();
+			cond_resched();
 			spin_lock_irq(&blkcg->lock);
+			continue;
 		}
+
+		blkg_destroy(blkg);
+		spin_unlock(&q->queue_lock);
 	}
 
 	spin_unlock_irq(&blkcg->lock);
-- 
2.27.0

[PATCH AUTOSEL 5.10 25/25] nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a SPCC device

[Sasha Levin]

From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>

[ Upstream commit 899199292b14b7c735808a37517de4dd2160c300 ]

This adds a quirk for SPCC 256GB NVMe 1.3 drive which fixes timeouts and
I/O errors due to the fact that the controller does not properly
handle the Write Zeroes command:

[ 2745.659527] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G            E 5.10.6-BET #1
[ 2745.659528] Hardware name: System manufacturer System Product Name/PRIME X570-P, BIOS 3001 12/04/2020
[ 2776.138874] nvme nvme1: I/O 414 QID 3 timeout, aborting
[ 2776.138886] nvme nvme1: I/O 415 QID 3 timeout, aborting
[ 2776.138891] nvme nvme1: I/O 416 QID 3 timeout, aborting
[ 2776.138895] nvme nvme1: I/O 417 QID 3 timeout, aborting
[ 2776.138912] nvme nvme1: Abort status: 0x0
[ 2776.138921] nvme nvme1: I/O 428 QID 3 timeout, aborting
[ 2776.138922] nvme nvme1: Abort status: 0x0
[ 2776.138925] nvme nvme1: Abort status: 0x0
[ 2776.138974] nvme nvme1: Abort status: 0x0
[ 2776.138977] nvme nvme1: Abort status: 0x0
[ 2806.346792] nvme nvme1: I/O 414 QID 3 timeout, reset controller
[ 2806.363566] nvme nvme1: 15/0/0 default/read/poll queues
[ 2836.554298] nvme nvme1: I/O 415 QID 3 timeout, disable controller
[ 2836.672064] blk_update_request: I/O error, dev nvme1n1, sector 16350 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672072] blk_update_request: I/O error, dev nvme1n1, sector 16093 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672074] blk_update_request: I/O error, dev nvme1n1, sector 15836 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672076] blk_update_request: I/O error, dev nvme1n1, sector 15579 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672078] blk_update_request: I/O error, dev nvme1n1, sector 15322 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672080] blk_update_request: I/O error, dev nvme1n1, sector 15065 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672082] blk_update_request: I/O error, dev nvme1n1, sector 14808 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672083] blk_update_request: I/O error, dev nvme1n1, sector 14551 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672085] blk_update_request: I/O error, dev nvme1n1, sector 14294 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672087] blk_update_request: I/O error, dev nvme1n1, sector 14037 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
[ 2836.672121] nvme nvme1: failed to mark controller live state
[ 2836.672123] nvme nvme1: Removing after probe failure status: -19
[ 2836.689016] Aborting journal on device dm-0-8.
[ 2836.689024] Buffer I/O error on dev dm-0, logical block 25198592, lost sync page write
[ 2836.689027] JBD2: Error -5 detected when updating journal superblock for dm-0-8.

Reported-by: Bradley Chapman <chapman6235@comcast.net>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Tested-by: Bradley Chapman <chapman6235@comcast.net>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 77f615568194d..a4b169408bbf0 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3248,6 +3248,8 @@ static const struct pci_device_id nvme_id_table[] = {
 		.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
 	{ PCI_DEVICE(0x15b7, 0x2001),   /*  Sandisk Skyhawk */
 		.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
+	{ PCI_DEVICE(0x1d97, 0x2263),   /* SPCC */
+		.driver_data = NVME_QUIRK_DISABLE_WRITE_ZEROES, },
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001),
 		.driver_data = NVME_QUIRK_SINGLE_VECTOR },
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2003) },
-- 
2.27.0

Re: [PATCH AUTOSEL 5.10 02/25] regulator: core: avoid regulator_resolve_supply() race condition

[Mark Brown]

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On Tue, Feb 02, 2021 at 10:05:52AM -0500, Sasha Levin wrote:
> From: David Collins <collinsd@codeaurora.org>
> 
> [ Upstream commit eaa7995c529b54d68d97a30f6344cc6ca2f214a7 ]
> 
> The final step in regulator_register() is to call
> regulator_resolve_supply() for each registered regulator
> (including the one in the process of being registered).  The

This introduces a lockdep warning, there's a follow up commit if you
want to backport it or it should be fine to just not backport either.

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Re: [PATCH AUTOSEL 5.10 02/25] regulator: core: avoid regulator_resolve_supply() race condition

[Sasha Levin]

On Tue, Feb 02, 2021 at 04:12:43PM +0000, Mark Brown wrote:
>On Tue, Feb 02, 2021 at 10:05:52AM -0500, Sasha Levin wrote:
>> From: David Collins <collinsd@codeaurora.org>
>>
>> [ Upstream commit eaa7995c529b54d68d97a30f6344cc6ca2f214a7 ]
>>
>> The final step in regulator_register() is to call
>> regulator_resolve_supply() for each registered regulator
>> (including the one in the process of being registered).  The
>
>This introduces a lockdep warning, there's a follow up commit if you
>want to backport it or it should be fine to just not backport either.

Okay, I'll see if it made it next week before I queue it up. Thanks!

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.10 02/25] regulator: core: avoid regulator_resolve_supply() race condition

[Mark Brown]

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On Tue, Feb 02, 2021 at 08:04:21PM -0500, Sasha Levin wrote:
> On Tue, Feb 02, 2021 at 04:12:43PM +0000, Mark Brown wrote:

> > This introduces a lockdep warning, there's a follow up commit if you
> > want to backport it or it should be fine to just not backport either.

> Okay, I'll see if it made it next week before I queue it up. Thanks!

The fix was sent in the same pull request so it's already there.

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