From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhang.chunyan@linaro.org (Chunyan Zhang) Date: Mon, 21 Nov 2016 10:24:44 +0800 Subject: [PATCH V8 3/3] stm: Mark the functions of writing buffer with notrace In-Reply-To: <871sy8g83q.fsf@ashishki-desk.ger.corp.intel.com> References: <1479438454-28650-1-git-send-email-zhang.chunyan@linaro.org> <1479438454-28650-4-git-send-email-zhang.chunyan@linaro.org> <871sy8g83q.fsf@ashishki-desk.ger.corp.intel.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 18 November 2016 at 22:45, Alexander Shishkin wrote: > Chunyan Zhang writes: > >> If CONFIG_STM_SOURCE_FTRACE is selected, Function trace data can be writen >> to sink via STM, all functions that related to writing data packets to >> STM should be marked 'notrace' to avoid being traced by Ftrace, otherwise >> the program would stall into an endless loop. >> >> Signed-off-by: Chunyan Zhang >> Acked-by: Steven Rostedt >> --- >> drivers/hwtracing/coresight/coresight-stm.c | 2 +- >> drivers/hwtracing/intel_th/sth.c | 11 +++++++---- >> drivers/hwtracing/stm/core.c | 7 ++++--- >> drivers/hwtracing/stm/dummy_stm.c | 2 +- >> include/linux/stm.h | 4 ++-- >> 5 files changed, 15 insertions(+), 11 deletions(-) > > Quick nit: can you please split this one in 4: one for Coresight, one > for Intel TH, one for stm/dummy and one for stm/core? Sure, will do. > > I'd like to keep the bisectability. Otherwise, this is fine by me: > > Acked-by: Alexander Shishkin Thanks, Chunyan > > Regards, > -- > Alex