From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.15.y 1/6] thunderbolt: Remove usage of the deprecated ida_simple_xx() API
Date: Mon, 27 Jul 2026 11:41:10 -0400 [thread overview]
Message-ID: <20260727154115.1516559-1-sashal@kernel.org> (raw)
In-Reply-To: <2026072001-numeric-suffice-a245@gregkh>
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit dec6a613574cd3dea799170b7aaa8fd76e22f176 ]
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().
Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_range()/ida_alloc_max() is inclusive. So a -1 has been added
when needed.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Stable-dep-of: 2c5d2d3c3f70 ("thunderbolt: Prevent XDomain delayed work use-after-free on disconnect")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thunderbolt/domain.c | 6 +++---
drivers/thunderbolt/nhi.c | 6 +++---
drivers/thunderbolt/nvm.c | 4 ++--
drivers/thunderbolt/switch.c | 6 +++---
drivers/thunderbolt/xdomain.c | 4 ++--
5 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
index 1ec8892f875f44..5d7099b3b0c60b 100644
--- a/drivers/thunderbolt/domain.c
+++ b/drivers/thunderbolt/domain.c
@@ -329,7 +329,7 @@ static void tb_domain_release(struct device *dev)
tb_ctl_free(tb->ctl);
destroy_workqueue(tb->wq);
- ida_simple_remove(&tb_domain_ida, tb->index);
+ ida_free(&tb_domain_ida, tb->index);
mutex_destroy(&tb->lock);
kfree(tb);
}
@@ -397,7 +397,7 @@ struct tb *tb_domain_alloc(struct tb_nhi *nhi, int timeout_msec, size_t privsize
tb->nhi = nhi;
mutex_init(&tb->lock);
- tb->index = ida_simple_get(&tb_domain_ida, 0, 0, GFP_KERNEL);
+ tb->index = ida_alloc(&tb_domain_ida, GFP_KERNEL);
if (tb->index < 0)
goto err_free;
@@ -421,7 +421,7 @@ struct tb *tb_domain_alloc(struct tb_nhi *nhi, int timeout_msec, size_t privsize
err_destroy_wq:
destroy_workqueue(tb->wq);
err_remove_ida:
- ida_simple_remove(&tb_domain_ida, tb->index);
+ ida_free(&tb_domain_ida, tb->index);
err_free:
kfree(tb);
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 85efec989ac573..2f68128e89ecdb 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -458,7 +458,7 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
if (!nhi->pdev->msix_enabled)
return 0;
- ret = ida_simple_get(&nhi->msix_ida, 0, MSIX_MAX_VECS, GFP_KERNEL);
+ ret = ida_alloc_max(&nhi->msix_ida, MSIX_MAX_VECS - 1, GFP_KERNEL);
if (ret < 0)
return ret;
@@ -478,7 +478,7 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
return 0;
err_ida_remove:
- ida_simple_remove(&nhi->msix_ida, ring->vector);
+ ida_free(&nhi->msix_ida, ring->vector);
return ret;
}
@@ -489,7 +489,7 @@ static void ring_release_msix(struct tb_ring *ring)
return;
free_irq(ring->irq, ring);
- ida_simple_remove(&ring->nhi->msix_ida, ring->vector);
+ ida_free(&ring->nhi->msix_ida, ring->vector);
ring->vector = 0;
ring->irq = 0;
}
diff --git a/drivers/thunderbolt/nvm.c b/drivers/thunderbolt/nvm.c
index 3a5336913ccac1..b0fce68f5a0ef9 100644
--- a/drivers/thunderbolt/nvm.c
+++ b/drivers/thunderbolt/nvm.c
@@ -30,7 +30,7 @@ struct tb_nvm *tb_nvm_alloc(struct device *dev)
if (!nvm)
return ERR_PTR(-ENOMEM);
- ret = ida_simple_get(&nvm_ida, 0, 0, GFP_KERNEL);
+ ret = ida_alloc(&nvm_ida, GFP_KERNEL);
if (ret < 0) {
kfree(nvm);
return ERR_PTR(ret);
@@ -159,7 +159,7 @@ void tb_nvm_free(struct tb_nvm *nvm)
if (nvm->active)
nvmem_unregister(nvm->active);
vfree(nvm->buf);
- ida_simple_remove(&nvm_ida, nvm->id);
+ ida_free(&nvm_ida, nvm->id);
}
kfree(nvm);
}
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 17e330c97a0f77..e3446d784e8e75 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -806,7 +806,7 @@ static int tb_port_alloc_hopid(struct tb_port *port, bool in, int min_hopid,
if (max_hopid < 0 || max_hopid > port_max_hopid)
max_hopid = port_max_hopid;
- return ida_simple_get(ida, min_hopid, max_hopid + 1, GFP_KERNEL);
+ return ida_alloc_range(ida, min_hopid, max_hopid, GFP_KERNEL);
}
/**
@@ -844,7 +844,7 @@ int tb_port_alloc_out_hopid(struct tb_port *port, int min_hopid, int max_hopid)
*/
void tb_port_release_in_hopid(struct tb_port *port, int hopid)
{
- ida_simple_remove(&port->in_hopids, hopid);
+ ida_free(&port->in_hopids, hopid);
}
/**
@@ -854,7 +854,7 @@ void tb_port_release_in_hopid(struct tb_port *port, int hopid)
*/
void tb_port_release_out_hopid(struct tb_port *port, int hopid)
{
- ida_simple_remove(&port->out_hopids, hopid);
+ ida_free(&port->out_hopids, hopid);
}
static inline bool tb_switch_is_reachable(const struct tb_switch *parent,
diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index df5e40c6876c48..6d178e70e2b1dd 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -808,7 +808,7 @@ static void tb_service_release(struct device *dev)
struct tb_xdomain *xd = tb_service_parent(svc);
tb_service_debugfs_remove(svc);
- ida_simple_remove(&xd->service_ids, svc->id);
+ ida_free(&xd->service_ids, svc->id);
kfree(svc->key);
kfree(svc);
}
@@ -910,7 +910,7 @@ static void enumerate_services(struct tb_xdomain *xd)
break;
}
- id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
+ id = ida_alloc(&xd->service_ids, GFP_KERNEL);
if (id < 0) {
kfree(svc->key);
kfree(svc);
--
2.53.0
next prev parent reply other threads:[~2026-07-27 15:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 14:59 FAILED: patch "[PATCH] thunderbolt: Prevent XDomain delayed work use-after-free on" failed to apply to 5.15-stable tree gregkh
2026-07-27 15:41 ` Sasha Levin [this message]
2026-07-27 15:41 ` [PATCH 5.15.y 2/6] thunderbolt: Update property.c function documentation Sasha Levin
2026-07-27 15:41 ` [PATCH 5.15.y 3/6] thunderbolt: Keep XDomain reference during the lifetime of a service Sasha Levin
2026-07-27 15:41 ` [PATCH 5.15.y 4/6] thunderbolt: Remove service debugfs entries during unregister Sasha Levin
2026-07-27 15:41 ` [PATCH 5.15.y 5/6] thunderbolt: Remove XDomain from the bus without holding tb->lock Sasha Levin
2026-07-27 15:41 ` [PATCH 5.15.y 6/6] thunderbolt: Prevent XDomain delayed work use-after-free on disconnect Sasha Levin
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