+++ /dev/null
-From 243dbd5c83fd647144b4e6f4e6e01e9e59fe910f Mon Sep 17 00:00:00 2001
-From: Michael Jeanson <mjeanson@efficios.com>
-Date: Tue, 29 Jul 2025 15:34:23 -0400
-Subject: [PATCH 2/2] fix: percpu: repurpose __percpu tag as a named address
- space qualifier (v6.15)
-
-The '__percpu' annotation was repurposed as a named address space
-qualifier, with compilers supporting 'typeof_unqual' like GCC 14 and
-Clang 19 this is now enforced at build time.
-
-See upstream commits:
-
- commit 6cea5ae714ba47ea4807d15903baca9857a450e6
- Author: Uros Bizjak <ubizjak@gmail.com>
- Date: Mon Jan 27 17:05:09 2025 +0100
-
- percpu: repurpose __percpu tag as a named address space qualifier
-
- The patch introduces __percpu_qual define and repurposes __percpu tag as a
- named address space qualifier using the new define.
-
- Arches can now conditionally define __percpu_qual as their named address
- space qualifier for percpu variables.
-
- commit 6a367577153acd9b432a5340fb10891eeb7e10f1
- Author: Uros Bizjak <ubizjak@gmail.com>
- Date: Mon Jan 27 17:05:10 2025 +0100
-
- percpu/x86: enable strict percpu checks via named AS qualifiers
-
- This patch declares percpu variables in __seg_gs/__seg_fs named AS and
- keeps them named AS qualified until they are dereferenced with percpu
- accessor. This approach enables various compiler check for
- cross-namespace variable assignments.
-
-Upstream-Status: Backport [commit 243dbd5c]
-
-Change-Id: Ib212cb4ef077da994867f0541921529dd4a799a0
-Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
-Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
----
- include/ringbuffer/backend_types.h | 5 ++-
- include/ringbuffer/frontend_api.h | 4 +-
- src/lib/ringbuffer/ring_buffer_backend.c | 30 +++++++-------
- src/lib/ringbuffer/ring_buffer_frontend.c | 40 +++++++++----------
- src/lib/ringbuffer/ring_buffer_iterator.c | 8 ++--
- src/lttng-context-callstack.c | 2 +-
- src/lttng-ring-buffer-event-notifier-client.h | 2 +-
- src/lttng-ring-buffer-metadata-client.h | 2 +-
- 8 files changed, 48 insertions(+), 45 deletions(-)
-
-diff --git a/include/ringbuffer/backend_types.h b/include/ringbuffer/backend_types.h
-index c23889ea..caafe4da 100644
---- a/include/ringbuffer/backend_types.h
-+++ b/include/ringbuffer/backend_types.h
-@@ -79,7 +79,10 @@ struct channel_backend {
- */
- unsigned int buf_size_order; /* Order of buffer size */
- unsigned int extra_reader_sb:1; /* has extra reader subbuffer ? */
-- struct lttng_kernel_ring_buffer *buf; /* Channel per-cpu buffers */
-+ union {
-+ struct lttng_kernel_ring_buffer *global_buf; /* Channel global buffer */
-+ struct lttng_kernel_ring_buffer __percpu *percpu_buf; /* Channel per-cpu buffers */
-+ };
-
- unsigned long num_subbuf; /* Number of sub-buffers for writer */
- u64 start_timestamp; /* Channel creation timestamp value */
-diff --git a/include/ringbuffer/frontend_api.h b/include/ringbuffer/frontend_api.h
-index e8d77d95..a0319c98 100644
---- a/include/ringbuffer/frontend_api.h
-+++ b/include/ringbuffer/frontend_api.h
-@@ -153,9 +153,9 @@ int lib_ring_buffer_reserve(const struct lttng_kernel_ring_buffer_config *config
- return -EAGAIN;
-
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU)
-- buf = per_cpu_ptr(chan->backend.buf, ctx->priv.reserve_cpu);
-+ buf = per_cpu_ptr(chan->backend.percpu_buf, ctx->priv.reserve_cpu);
- else
-- buf = chan->backend.buf;
-+ buf = chan->backend.global_buf;
- if (unlikely(atomic_read(&buf->record_disabled)))
- return -EAGAIN;
- ctx->priv.buf = buf;
-diff --git a/src/lib/ringbuffer/ring_buffer_backend.c b/src/lib/ringbuffer/ring_buffer_backend.c
-index 3eaa1b96..b5ecde4d 100644
---- a/src/lib/ringbuffer/ring_buffer_backend.c
-+++ b/src/lib/ringbuffer/ring_buffer_backend.c
-@@ -279,7 +279,7 @@ int lttng_cpuhp_rb_backend_prepare(unsigned int cpu,
-
- CHAN_WARN_ON(chanb, config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL);
-
-- buf = per_cpu_ptr(chanb->buf, cpu);
-+ buf = per_cpu_ptr(chanb->percpu_buf, cpu);
- ret = lib_ring_buffer_create(buf, chanb, cpu);
- if (ret) {
- printk(KERN_ERR
-@@ -320,7 +320,7 @@ int lib_ring_buffer_cpu_hp_callback(struct notifier_block *nb,
- switch (action) {
- case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
-- buf = per_cpu_ptr(chanb->buf, cpu);
-+ buf = per_cpu_ptr(chanb->percpu_buf, cpu);
- ret = lib_ring_buffer_create(buf, chanb, cpu);
- if (ret) {
- printk(KERN_ERR
-@@ -415,8 +415,8 @@ int channel_backend_init(struct channel_backend *chanb,
-
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
- /* Allocating the buffer per-cpu structures */
-- chanb->buf = alloc_percpu(struct lttng_kernel_ring_buffer);
-- if (!chanb->buf)
-+ chanb->percpu_buf = alloc_percpu(struct lttng_kernel_ring_buffer);
-+ if (!chanb->percpu_buf)
- goto free_cpumask;
-
- #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
-@@ -447,7 +447,7 @@ int channel_backend_init(struct channel_backend *chanb,
-
- lttng_cpus_read_lock();
- for_each_online_cpu(i) {
-- ret = lib_ring_buffer_create(per_cpu_ptr(chanb->buf, i),
-+ ret = lib_ring_buffer_create(per_cpu_ptr(chanb->percpu_buf, i),
- chanb, i);
- if (ret)
- goto free_bufs; /* cpu hotplug locked */
-@@ -455,7 +455,7 @@ int channel_backend_init(struct channel_backend *chanb,
- lttng_cpus_read_unlock();
- #else
- for_each_possible_cpu(i) {
-- ret = lib_ring_buffer_create(per_cpu_ptr(chanb->buf, i),
-+ ret = lib_ring_buffer_create(per_cpu_ptr(chanb->percpu_buf, i),
- chanb, i);
- if (ret)
- goto free_bufs;
-@@ -464,10 +464,10 @@ int channel_backend_init(struct channel_backend *chanb,
- }
- #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
- } else {
-- chanb->buf = kzalloc(sizeof(struct lttng_kernel_ring_buffer), GFP_KERNEL);
-- if (!chanb->buf)
-+ chanb->global_buf = kzalloc(sizeof(struct lttng_kernel_ring_buffer), GFP_KERNEL);
-+ if (!chanb->global_buf)
- goto free_cpumask;
-- ret = lib_ring_buffer_create(chanb->buf, chanb, -1);
-+ ret = lib_ring_buffer_create(chanb->global_buf, chanb, -1);
- if (ret)
- goto free_bufs;
- }
-@@ -491,15 +491,15 @@ free_bufs:
- #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
- for_each_possible_cpu(i) {
- struct lttng_kernel_ring_buffer *buf =
-- per_cpu_ptr(chanb->buf, i);
-+ per_cpu_ptr(chanb->percpu_buf, i);
-
- if (!buf->backend.allocated)
- continue;
- lib_ring_buffer_free(buf);
- }
-- free_percpu(chanb->buf);
-+ free_percpu(chanb->percpu_buf);
- } else
-- kfree(chanb->buf);
-+ kfree(chanb->global_buf);
- free_cpumask:
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU)
- free_cpumask_var(chanb->cpumask);
-@@ -542,16 +542,16 @@ void channel_backend_free(struct channel_backend *chanb)
-
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
- for_each_possible_cpu(i) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chanb->buf, i);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chanb->percpu_buf, i);
-
- if (!buf->backend.allocated)
- continue;
- lib_ring_buffer_free(buf);
- }
- free_cpumask_var(chanb->cpumask);
-- free_percpu(chanb->buf);
-+ free_percpu(chanb->percpu_buf);
- } else {
-- struct lttng_kernel_ring_buffer *buf = chanb->buf;
-+ struct lttng_kernel_ring_buffer *buf = chanb->global_buf;
-
- CHAN_WARN_ON(chanb, !buf->backend.allocated);
- lib_ring_buffer_free(buf);
-diff --git a/src/lib/ringbuffer/ring_buffer_frontend.c b/src/lib/ringbuffer/ring_buffer_frontend.c
-index 1ed9dc47..f9def043 100644
---- a/src/lib/ringbuffer/ring_buffer_frontend.c
-+++ b/src/lib/ringbuffer/ring_buffer_frontend.c
-@@ -505,7 +505,7 @@ int lttng_cpuhp_rb_frontend_dead(unsigned int cpu,
- {
- struct lttng_kernel_ring_buffer_channel *chan = container_of(node, struct lttng_kernel_ring_buffer_channel,
- cpuhp_prepare);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- CHAN_WARN_ON(chan, config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL);
-@@ -526,7 +526,7 @@ int lttng_cpuhp_rb_frontend_online(unsigned int cpu,
- {
- struct lttng_kernel_ring_buffer_channel *chan = container_of(node, struct lttng_kernel_ring_buffer_channel,
- cpuhp_online);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- CHAN_WARN_ON(chan, config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL);
-@@ -543,7 +543,7 @@ int lttng_cpuhp_rb_frontend_offline(unsigned int cpu,
- {
- struct lttng_kernel_ring_buffer_channel *chan = container_of(node, struct lttng_kernel_ring_buffer_channel,
- cpuhp_online);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- CHAN_WARN_ON(chan, config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL);
-@@ -574,7 +574,7 @@ int lib_ring_buffer_cpu_hp_callback(struct notifier_block *nb,
- unsigned int cpu = (unsigned long)hcpu;
- struct lttng_kernel_ring_buffer_channel *chan = container_of(nb, struct lttng_kernel_ring_buffer_channel,
- cpu_hp_notifier);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- if (!chan->cpu_hp_enable)
-@@ -741,7 +741,7 @@ static void channel_unregister_notifiers(struct lttng_kernel_ring_buffer_channel
- lttng_cpus_read_lock();
- chan->cpu_hp_enable = 0;
- for_each_online_cpu(cpu) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
- lib_ring_buffer_stop_switch_timer(buf);
- lib_ring_buffer_stop_read_timer(buf);
-@@ -750,7 +750,7 @@ static void channel_unregister_notifiers(struct lttng_kernel_ring_buffer_channel
- unregister_cpu_notifier(&chan->cpu_hp_notifier);
- #else
- for_each_possible_cpu(cpu) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
- lib_ring_buffer_stop_switch_timer(buf);
- lib_ring_buffer_stop_read_timer(buf);
-@@ -759,7 +759,7 @@ static void channel_unregister_notifiers(struct lttng_kernel_ring_buffer_channel
- }
- #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
- } else {
-- struct lttng_kernel_ring_buffer *buf = chan->backend.buf;
-+ struct lttng_kernel_ring_buffer *buf = chan->backend.global_buf;
-
- lib_ring_buffer_stop_switch_timer(buf);
- lib_ring_buffer_stop_read_timer(buf);
-@@ -788,14 +788,14 @@ void lib_ring_buffer_set_quiescent_channel(struct lttng_kernel_ring_buffer_chann
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
- lttng_cpus_read_lock();
- for_each_channel_cpu(cpu, chan) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
-
- lib_ring_buffer_set_quiescent(buf);
- }
- lttng_cpus_read_unlock();
- } else {
-- struct lttng_kernel_ring_buffer *buf = chan->backend.buf;
-+ struct lttng_kernel_ring_buffer *buf = chan->backend.global_buf;
-
- lib_ring_buffer_set_quiescent(buf);
- }
-@@ -810,14 +810,14 @@ void lib_ring_buffer_clear_quiescent_channel(struct lttng_kernel_ring_buffer_cha
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
- lttng_cpus_read_lock();
- for_each_channel_cpu(cpu, chan) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
-
- lib_ring_buffer_clear_quiescent(buf);
- }
- lttng_cpus_read_unlock();
- } else {
-- struct lttng_kernel_ring_buffer *buf = chan->backend.buf;
-+ struct lttng_kernel_ring_buffer *buf = chan->backend.global_buf;
-
- lib_ring_buffer_clear_quiescent(buf);
- }
-@@ -915,7 +915,7 @@ struct lttng_kernel_ring_buffer_channel *channel_create(const struct lttng_kerne
-
- lttng_cpus_read_lock();
- for_each_online_cpu(cpu) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
- spin_lock(&per_cpu(ring_buffer_nohz_lock, cpu));
- lib_ring_buffer_start_switch_timer(buf);
-@@ -926,7 +926,7 @@ struct lttng_kernel_ring_buffer_channel *channel_create(const struct lttng_kerne
- lttng_cpus_read_unlock();
- #else
- for_each_possible_cpu(cpu) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
- spin_lock(&per_cpu(ring_buffer_nohz_lock, cpu));
- lib_ring_buffer_start_switch_timer(buf);
-@@ -947,7 +947,7 @@ struct lttng_kernel_ring_buffer_channel *channel_create(const struct lttng_kerne
- #endif /* defined(CONFIG_NO_HZ) && defined(CONFIG_LIB_RING_BUFFER) */
-
- } else {
-- struct lttng_kernel_ring_buffer *buf = chan->backend.buf;
-+ struct lttng_kernel_ring_buffer *buf = chan->backend.global_buf;
-
- lib_ring_buffer_start_switch_timer(buf);
- lib_ring_buffer_start_read_timer(buf);
-@@ -1004,7 +1004,7 @@ void *channel_destroy(struct lttng_kernel_ring_buffer_channel *chan)
- * unregistered.
- */
- for_each_channel_cpu(cpu, chan) {
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf,
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf,
- cpu);
-
- if (config->cb.buffer_finalize)
-@@ -1019,7 +1019,7 @@ void *channel_destroy(struct lttng_kernel_ring_buffer_channel *chan)
- wake_up_interruptible(&buf->read_wait);
- }
- } else {
-- struct lttng_kernel_ring_buffer *buf = chan->backend.buf;
-+ struct lttng_kernel_ring_buffer *buf = chan->backend.global_buf;
-
- if (config->cb.buffer_finalize)
- config->cb.buffer_finalize(buf, chan->backend.priv, -1);
-@@ -1044,9 +1044,9 @@ struct lttng_kernel_ring_buffer *channel_get_ring_buffer(
- struct lttng_kernel_ring_buffer_channel *chan, int cpu)
- {
- if (config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL)
-- return chan->backend.buf;
-+ return chan->backend.global_buf;
- else
-- return per_cpu_ptr(chan->backend.buf, cpu);
-+ return per_cpu_ptr(chan->backend.percpu_buf, cpu);
- }
- EXPORT_SYMBOL_GPL(channel_get_ring_buffer);
-
-@@ -2271,9 +2271,9 @@ static struct lttng_kernel_ring_buffer *get_current_buf(struct lttng_kernel_ring
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- if (config->alloc == RING_BUFFER_ALLOC_PER_CPU)
-- return per_cpu_ptr(chan->backend.buf, cpu);
-+ return per_cpu_ptr(chan->backend.percpu_buf, cpu);
- else
-- return chan->backend.buf;
-+ return chan->backend.global_buf;
- }
-
- void lib_ring_buffer_lost_event_too_big(struct lttng_kernel_ring_buffer_channel *chan)
-diff --git a/src/lib/ringbuffer/ring_buffer_iterator.c b/src/lib/ringbuffer/ring_buffer_iterator.c
-index 88d79412..1a1db5e2 100644
---- a/src/lib/ringbuffer/ring_buffer_iterator.c
-+++ b/src/lib/ringbuffer/ring_buffer_iterator.c
-@@ -361,7 +361,7 @@ int lttng_cpuhp_rb_iter_online(unsigned int cpu,
- {
- struct lttng_kernel_ring_buffer_channel *chan = container_of(node, struct lttng_kernel_ring_buffer_channel,
- cpuhp_iter_online);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- CHAN_WARN_ON(chan, config->alloc == RING_BUFFER_ALLOC_PER_CHANNEL);
-@@ -382,7 +382,7 @@ int channel_iterator_cpu_hotplug(struct notifier_block *nb,
- unsigned int cpu = (unsigned long)hcpu;
- struct lttng_kernel_ring_buffer_channel *chan = container_of(nb, struct lttng_kernel_ring_buffer_channel,
- hp_iter_notifier);
-- struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ struct lttng_kernel_ring_buffer *buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- const struct lttng_kernel_ring_buffer_config *config = &chan->backend.config;
-
- if (!chan->hp_iter_enable)
-@@ -443,14 +443,14 @@ int channel_iterator_init(struct lttng_kernel_ring_buffer_channel *chan)
-
- lttng_cpus_read_lock();
- for_each_online_cpu(cpu) {
-- buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- lib_ring_buffer_iterator_init(chan, buf);
- }
- chan->hp_iter_enable = 1;
- lttng_cpus_read_unlock();
- #else
- for_each_possible_cpu(cpu) {
-- buf = per_cpu_ptr(chan->backend.buf, cpu);
-+ buf = per_cpu_ptr(chan->backend.percpu_buf, cpu);
- lib_ring_buffer_iterator_init(chan, buf);
- }
- #endif
-diff --git a/src/lttng-context-callstack.c b/src/lttng-context-callstack.c
-index 4385472e..c5910718 100644
---- a/src/lttng-context-callstack.c
-+++ b/src/lttng-context-callstack.c
-@@ -69,7 +69,7 @@ void field_data_free(struct field_data *fdata)
- }
-
- static
--struct field_data __percpu *field_data_create(enum lttng_cs_ctx_modes mode)
-+struct field_data *field_data_create(enum lttng_cs_ctx_modes mode)
- {
- struct lttng_cs __percpu *cs_set;
- struct field_data *fdata;
-diff --git a/src/lttng-ring-buffer-event-notifier-client.h b/src/lttng-ring-buffer-event-notifier-client.h
-index 95deab46..b4145914 100644
---- a/src/lttng-ring-buffer-event-notifier-client.h
-+++ b/src/lttng-ring-buffer-event-notifier-client.h
-@@ -363,7 +363,7 @@ size_t lttng_packet_avail_size(struct lttng_kernel_ring_buffer_channel *chan)
- unsigned long o_begin;
- struct lttng_kernel_ring_buffer *buf;
-
-- buf = chan->backend.buf; /* Only for global buffer ! */
-+ buf = chan->backend.global_buf; /* Only for global buffer ! */
- o_begin = v_read(&client_config, &buf->offset);
- if (subbuf_offset(o_begin, chan) != 0) {
- return chan->backend.subbuf_size - subbuf_offset(o_begin, chan);
-diff --git a/src/lttng-ring-buffer-metadata-client.h b/src/lttng-ring-buffer-metadata-client.h
-index 99158451..9ef73266 100644
---- a/src/lttng-ring-buffer-metadata-client.h
-+++ b/src/lttng-ring-buffer-metadata-client.h
-@@ -368,7 +368,7 @@ size_t lttng_packet_avail_size(struct lttng_kernel_ring_buffer_channel *chan)
- unsigned long o_begin;
- struct lttng_kernel_ring_buffer *buf;
-
-- buf = chan->backend.buf; /* Only for global buffer ! */
-+ buf = chan->backend.global_buf; /* Only for global buffer ! */
- o_begin = v_read(&client_config, &buf->offset);
- if (subbuf_offset(o_begin, chan) != 0) {
- return chan->backend.subbuf_size - subbuf_offset(o_begin, chan);
---
-2.39.2
-
projects / thirdparty / openembedded / openembedded-core.git / commitdiff
