[LTP] [PATCH v2] input_helper: Modify the check range of the input event number

Kogure Akihisa ( 小暮 明久 ) akihisa.kogure.ke@kyocera.jp
Fri Mar 29 00:59:01 CET 2024


The following commit was set to 1023 for the upper limit of event IDs, so we changed it to check up to 0-1023.
https://github.com/torvalds/linux/commit/7f8d4cad1e4e11a45d02bd6e024cc2812963c38a

---
Changes in v2:
- Changed it to check up to 0-1023.
---
---

If the input event number is greater than 32, the newly added event ID
will be 256 or later.
When there were already 32 input events in the device, this test program
only checked 0~99, so it failed because it could not find a new input
event ID.

In order to eliminate this failure, we changed the event ID range to be
checked by this test program to 0~1023.

---

diff --git a/testcases/kernel/input/input_helper.c b/testcases/kernel/input/input_helper.c
index 09530fb..6b60d17 100644
--- a/testcases/kernel/input/input_helper.c
+++ b/testcases/kernel/input/input_helper.c
@@ -40,7 +40,7 @@
      int ret, fd = -1;
      unsigned int i;

-     for (i = 0; i < 100; i++) {
+     for (i = 0; i < 1024; i++) {
            snprintf(path, sizeof(path), "/dev/input/event%i", i);

            fd = open(path, O_RDONLY);



---
Akihisa Kogure
akihisa.kogure.ke@kyocera.jp


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