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Message-ID: <20240802142748.bt1qvHxQ@linutronix.de>
Date: Fri, 2 Aug 2024 16:27:48 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>, linux-rt-users@...r.kernel.org,
Steven Rostedt <rostedt@...dmis.org>
Subject: [ANNOUNCE] v6.10.2-rt14
Dear RT folks!
I'm pleased to announce the v6.10.2-rt14 patch set.
Changes since v6.10.2-rt13:
- Replace the "seg6_state/ BPF" fixup introduced in v6.10-rc6-rt11
with a the version, that has been merged upstream.
- Add another hunk to the i915 to avoid disabling interrupts during
cursor updates.
Known issues
None.
The delta patch against v6.10.2-rt13 is appended below and can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/6.10/incr/patch-6.10.2-rt13-rt14.patch.xz
You can get this release via the git tree at:
https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v6.10.2-rt14
The RT patch against v6.10.2 can be found here:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/6.10/older/patch-6.10.2-rt14.patch.xz
The split quilt queue is available at:
https://cdn.kernel.org/pub/linux/kernel/projects/rt/6.10/older/patches-6.10.2-rt14.tar.xz
Sebastian
diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c
index 23a122ee20c98..b5676e667c1ff 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -797,13 +797,15 @@ intel_legacy_cursor_update(struct drm_plane *_plane,
*/
intel_psr_wait_for_idle_locked(crtc_state);
- local_irq_disable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ local_irq_disable();
intel_vblank_evade(&evade);
drm_crtc_vblank_put(&crtc->base);
} else {
- local_irq_disable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ local_irq_disable();
}
if (new_plane_state->uapi.visible) {
@@ -813,7 +815,8 @@ intel_legacy_cursor_update(struct drm_plane *_plane,
intel_plane_disable_arm(plane, crtc_state);
}
- local_irq_enable();
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ local_irq_enable();
intel_psr_unlock(crtc_state);
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 2b8503fecd026..b1d9bc714c987 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -739,7 +739,6 @@ struct bpf_nh_params {
#define BPF_RI_F_CPU_MAP_INIT BIT(2)
#define BPF_RI_F_DEV_MAP_INIT BIT(3)
#define BPF_RI_F_XSK_MAP_INIT BIT(4)
-#define BPF_RI_F_SEG6_STATE BIT(5)
struct bpf_redirect_info {
u64 tgt_index;
@@ -857,29 +856,6 @@ static inline void bpf_net_ctx_get_all_used_flush_lists(struct list_head **lh_ma
*lh_xsk = lh;
}
-static inline bool bpf_net_ctx_seg6_state_avail(void)
-{
- struct bpf_net_context *bpf_net_ctx = bpf_net_ctx_get();
-
- if (!bpf_net_ctx)
- return false;
- return bpf_net_ctx->ri.kern_flags & BPF_RI_F_SEG6_STATE;
-}
-
-static inline void bpf_net_ctx_seg6_state_set(void)
-{
- struct bpf_net_context *bpf_net_ctx = bpf_net_ctx_get();
-
- bpf_net_ctx->ri.kern_flags |= BPF_RI_F_SEG6_STATE;
-}
-
-static inline void bpf_net_ctx_seg6_state_clr(void)
-{
- struct bpf_net_context *bpf_net_ctx = bpf_net_ctx_get();
-
- bpf_net_ctx->ri.kern_flags &= ~BPF_RI_F_SEG6_STATE;
-}
-
/* Compute the linear packet data range [data, data_end) which
* will be accessed by various program types (cls_bpf, act_bpf,
* lwt, ...). Subsystems allowing direct data access must (!)
diff --git a/localversion-rt b/localversion-rt
index 9f7d0bdbffb18..08b3e75841adc 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt13
+-rt14
diff --git a/net/core/filter.c b/net/core/filter.c
index 9556453a8b564..5002f4cd9f18e 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -6459,8 +6459,6 @@ BPF_CALL_4(bpf_lwt_seg6_store_bytes, struct sk_buff *, skb, u32, offset,
void *srh_tlvs, *srh_end, *ptr;
int srhoff = 0;
- if (!bpf_net_ctx_seg6_state_avail())
- return -EINVAL;
lockdep_assert_held(&srh_state->bh_lock);
if (srh == NULL)
return -EINVAL;
@@ -6518,8 +6516,6 @@ BPF_CALL_4(bpf_lwt_seg6_action, struct sk_buff *, skb,
int hdroff = 0;
int err;
- if (!bpf_net_ctx_seg6_state_avail())
- return -EINVAL;
lockdep_assert_held(&srh_state->bh_lock);
switch (action) {
case SEG6_LOCAL_ACTION_END_X:
@@ -6597,8 +6593,6 @@ BPF_CALL_3(bpf_lwt_seg6_adjust_srh, struct sk_buff *, skb, u32, offset,
int srhoff = 0;
int ret;
- if (!bpf_net_ctx_seg6_state_avail())
- return -EINVAL;
lockdep_assert_held(&srh_state->bh_lock);
if (unlikely(srh == NULL))
return -EINVAL;
@@ -11053,7 +11047,6 @@ const struct bpf_verifier_ops lwt_seg6local_verifier_ops = {
};
const struct bpf_prog_ops lwt_seg6local_prog_ops = {
- .test_run = bpf_prog_test_run_skb,
};
const struct bpf_verifier_ops cg_sock_verifier_ops = {
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 3e3a48b7266b5..c74705ead9849 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -1429,7 +1429,6 @@ static int input_action_end_bpf(struct sk_buff *skb,
* bpf_prog_run_save_cb().
*/
local_lock_nested_bh(&seg6_bpf_srh_states.bh_lock);
- bpf_net_ctx_seg6_state_set();
srh_state = this_cpu_ptr(&seg6_bpf_srh_states);
srh_state->srh = srh;
srh_state->hdrlen = srh->hdrlen << 3;
@@ -1453,7 +1452,6 @@ static int input_action_end_bpf(struct sk_buff *skb,
if (srh_state->srh && !seg6_bpf_has_valid_srh(skb))
goto drop;
- bpf_net_ctx_seg6_state_clr();
local_unlock_nested_bh(&seg6_bpf_srh_states.bh_lock);
if (ret != BPF_REDIRECT)
@@ -1462,7 +1460,6 @@ static int input_action_end_bpf(struct sk_buff *skb,
return dst_input(skb);
drop:
- bpf_net_ctx_seg6_state_clr();
local_unlock_nested_bh(&seg6_bpf_srh_states.bh_lock);
kfree_skb(skb);
return -EINVAL;
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