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([2a02:2f0a:131e:0:1820:da87:73b1:d80c]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39efa49312fsm14907887f8f.70.2025.04.22.04.32.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Apr 2025 04:32:23 -0700 (PDT) From: Eugen Hristev To: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, andersson@kernel.org Cc: linux-doc@vger.kernel.org, corbet@lwn.net, tglx@linutronix.de, mingo@redhat.com, rostedt@goodmis.org, john.ogness@linutronix.de, senozhatsky@chromium.org, pmladek@suse.com, peterz@infradead.org, mojha@qti.qualcomm.com, linux-arm-kernel@lists.infradead.org, vincent.guittot@linaro.org, konradybcio@kernel.org, dietmar.eggemann@arm.com, juri.lelli@redhat.com, eugen.hristev@linaro.org Subject: [RFC][PATCH 09/14] genirq: add irq_kmemdump_register Date: Tue, 22 Apr 2025 14:31:51 +0300 Message-ID: <20250422113156.575971-10-eugen.hristev@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250422113156.575971-1-eugen.hristev@linaro.org> References: <20250422113156.575971-1-eugen.hristev@linaro.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add function to register irq info into kmemdump. Signed-off-by: Eugen Hristev --- include/linux/irqnr.h | 1 + kernel/irq/irqdesc.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h index e97206c721a0..136f0572ad78 100644 --- a/include/linux/irqnr.h +++ b/include/linux/irqnr.h @@ -9,6 +9,7 @@ unsigned int irq_get_nr_irqs(void) __pure; unsigned int irq_set_nr_irqs(unsigned int nr); extern struct irq_desc *irq_to_desc(unsigned int irq); unsigned int irq_get_next_irq(unsigned int offset); +void irq_kmemdump_register(void); =20 #define for_each_irq_desc(irq, desc) \ for (unsigned int __nr_irqs__ =3D irq_get_nr_irqs(); __nr_irqs__; \ diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 287830739783..ae29165b1f1f 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -164,6 +165,12 @@ unsigned int irq_set_nr_irqs(unsigned int nr) } EXPORT_SYMBOL_GPL(irq_set_nr_irqs); =20 +void irq_kmemdump_register(void) +{ + kmemdump_register("irq", (void *)&nr_irqs, sizeof(nr_irqs)); +} +EXPORT_SYMBOL_GPL(irq_kmemdump_register); + static DEFINE_MUTEX(sparse_irq_lock); static struct maple_tree sparse_irqs =3D MTREE_INIT_EXT(sparse_irqs, MT_FLAGS_ALLOC_RANGE | --=20 2.43.0