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([2a02:2f0a:131e:0:1820:da87:73b1:d80c]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39efa49312fsm14907887f8f.70.2025.04.22.04.32.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Apr 2025 04:32:26 -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 11/14] panic: add panic_kmemdump_register Date: Tue, 22 Apr 2025 14:31:53 +0300 Message-ID: <20250422113156.575971-12-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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250422_123229_427007_EEA85E98 X-CRM114-Status: GOOD ( 11.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add function to register panic info into kmemdump Signed-off-by: Eugen Hristev --- include/linux/panic.h | 1 + kernel/panic.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/include/linux/panic.h b/include/linux/panic.h index 54d90b6c5f47..42a24bae218c 100644 --- a/include/linux/panic.h +++ b/include/linux/panic.h @@ -96,5 +96,6 @@ extern const char *print_tainted_verbose(void); extern void add_taint(unsigned flag, enum lockdep_ok); extern int test_taint(unsigned flag); extern unsigned long get_taint(void); +extern void panic_kmemdump_register(void); #endif /* _LINUX_PANIC_H */ diff --git a/kernel/panic.c b/kernel/panic.c index d8635d5cecb2..a26c9581e70a 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -38,6 +38,7 @@ #include #include #include +#include #define PANIC_TIMER_STEP 100 #define PANIC_BLINK_SPD 18 @@ -589,6 +590,13 @@ unsigned long get_taint(void) return tainted_mask; } +void panic_kmemdump_register(void) +{ + kmemdump_register("taint", (void *)&tainted_mask, sizeof(tainted_mask)); + kmemdump_register("taintflags", (void *)&taint_flags, sizeof(taint_flags)); +} +EXPORT_SYMBOL_GPL(panic_kmemdump_register); + /** * add_taint: add a taint flag if not already set. * @flag: one of the TAINT_* constants. -- 2.43.0