6.6-stable review patch. If anyone has any objections, please let me know.
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From: Thomas Weißschuh thomas.weissschuh@linutronix.de
[ Upstream commit 66ceb45b7d7e9673254116eefe5b6d3a44eba267 ]
In the past %pK was preferable to %p as it would not leak raw pointer values into the kernel log. Since commit ad67b74d2469 ("printk: hash addresses printed with %p") the regular %p has been improved to avoid this issue. Furthermore, restricted pointers ("%pK") were never meant to be used through printk(). They can still unintentionally leak raw pointers or acquire sleeping locks in atomic contexts.
Switch to the regular pointer formatting which is safer and easier to reason about. There are still a few users of %pK left, but these use it through seq_file, for which its usage is safe.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Acked-by: Przemek Kitszel przemyslaw.kitszel@intel.com Reviewed-by: Aleksandr Loktionov aleksandr.loktionov@intel.com Reviewed-by: Simon Horman horms@kernel.org Reviewed-by: Paul Menzel pmenzel@molgen.mpg.de Reviewed-by: Jacob Keller jacob.e.keller@intel.com Link: https://patch.msgid.link/20250811-restricted-pointers-net-v5-1-2e2fdc7d3f2c@... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_trace.h | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index e1a68fb5e9fff..e846246261b94 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -8765,7 +8765,7 @@ static int ice_create_q_channels(struct ice_vsi *vsi) list_add_tail(&ch->list, &vsi->ch_list); vsi->tc_map_vsi[i] = ch->ch_vsi; dev_dbg(ice_pf_to_dev(pf), - "successfully created channel: VSI %pK\n", ch->ch_vsi); + "successfully created channel: VSI %p\n", ch->ch_vsi); } return 0;
diff --git a/drivers/net/ethernet/intel/ice/ice_trace.h b/drivers/net/ethernet/intel/ice/ice_trace.h index b2f5c9fe01492..a41e210a310d1 100644 --- a/drivers/net/ethernet/intel/ice/ice_trace.h +++ b/drivers/net/ethernet/intel/ice/ice_trace.h @@ -130,7 +130,7 @@ DECLARE_EVENT_CLASS(ice_tx_template, __entry->buf = buf; __assign_str(devname, ring->netdev->name);),
- TP_printk("netdev: %s ring: %pK desc: %pK buf %pK", __get_str(devname), + TP_printk("netdev: %s ring: %p desc: %p buf %p", __get_str(devname), __entry->ring, __entry->desc, __entry->buf) );
@@ -158,7 +158,7 @@ DECLARE_EVENT_CLASS(ice_rx_template, __entry->desc = desc; __assign_str(devname, ring->netdev->name);),
- TP_printk("netdev: %s ring: %pK desc: %pK", __get_str(devname), + TP_printk("netdev: %s ring: %p desc: %p", __get_str(devname), __entry->ring, __entry->desc) ); DEFINE_EVENT(ice_rx_template, ice_clean_rx_irq, @@ -182,7 +182,7 @@ DECLARE_EVENT_CLASS(ice_rx_indicate_template, __entry->skb = skb; __assign_str(devname, ring->netdev->name);),
- TP_printk("netdev: %s ring: %pK desc: %pK skb %pK", __get_str(devname), + TP_printk("netdev: %s ring: %p desc: %p skb %p", __get_str(devname), __entry->ring, __entry->desc, __entry->skb) );
@@ -205,7 +205,7 @@ DECLARE_EVENT_CLASS(ice_xmit_template, __entry->skb = skb; __assign_str(devname, ring->netdev->name);),
- TP_printk("netdev: %s skb: %pK ring: %pK", __get_str(devname), + TP_printk("netdev: %s skb: %p ring: %p", __get_str(devname), __entry->skb, __entry->ring) );
@@ -228,7 +228,7 @@ DECLARE_EVENT_CLASS(ice_tx_tstamp_template, TP_fast_assign(__entry->skb = skb; __entry->idx = idx;),
- TP_printk("skb %pK idx %d", + TP_printk("skb %p idx %d", __entry->skb, __entry->idx) ); #define DEFINE_TX_TSTAMP_OP_EVENT(name) \