From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- Documentation/ABI/testing/sysfs-bus-siox | 90 ++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-siox (limited to 'Documentation/ABI/testing/sysfs-bus-siox') diff --git a/Documentation/ABI/testing/sysfs-bus-siox b/Documentation/ABI/testing/sysfs-bus-siox new file mode 100644 index 000000000..50e80238f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-siox @@ -0,0 +1,90 @@ +What: /sys/bus/siox/devices/siox-X/active +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + On reading represents the current state of the bus. If it + contains a "0" the bus is stopped and connected devices are + expected to not do anything because their watchdog triggered. + When the file contains a "1" the bus is operated and periodically + does a push-pull cycle to write and read data from the + connected devices. + + When writing a "0" or "1" the bus moves to the described state. + +What: /sys/bus/siox/devices/siox-X/device_add +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Write-only file. Write + + + + to add a new device dynamically. is the name that is used to match + to a driver (similar to the platform bus). and define + the length of the input and output shift register in bytes respectively. + + defines the 4 bit device type that is check to identify connection + problems. + + The new device is added to the end of the existing chain. + +What: /sys/bus/siox/devices/siox-X/device_remove +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Write-only file. A single write removes the last device in the siox chain. + +What: /sys/bus/siox/devices/siox-X/poll_interval_ns +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Defines the interval between two poll cycles in nano seconds. + Note this is rounded to jiffies on writing. On reading the current value + is returned. + +What: /sys/bus/siox/devices/siox-X-Y/connected +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value. "0" means the Yth device on siox bus X isn't "connected" i.e. + communication with it is not ensured. "1" signals a working connection. + +What: /sys/bus/siox/devices/siox-X-Y/inbytes +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value reporting the inbytes value provided to siox-X/device_add + +What: /sys/bus/siox/devices/siox-X-Y/status_errors +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Counts the number of time intervals when the read status byte doesn't yield the + expected value. + +What: /sys/bus/siox/devices/siox-X-Y/type +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value reporting the type value provided to siox-X/device_add. + +What: /sys/bus/siox/devices/siox-X-Y/watchdog +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value reporting if the watchdog of the siox device is + active. "0" means the watchdog is not active and the device is expected to + be operational. "1" means the watchdog keeps the device in reset. + +What: /sys/bus/siox/devices/siox-X-Y/watchdog_errors +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value reporting the number to time intervals when the + watchdog was active. + +What: /sys/bus/siox/devices/siox-X-Y/outbytes +KernelVersion: 4.16 +Contact: Thorsten Scherer , Uwe Kleine-König +Description: + Read-only value reporting the outbytes value provided to siox-X/device_add. -- cgit v1.3.1