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) --- fs/proc/softirqs.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 fs/proc/softirqs.c (limited to 'fs/proc/softirqs.c') diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c new file mode 100644 index 000000000..04bb29721 --- /dev/null +++ b/fs/proc/softirqs.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include "internal.h" + +/* + * /proc/softirqs ... display the number of softirqs + */ +static int show_softirqs(struct seq_file *p, void *v) +{ + int i, j; + + seq_puts(p, " "); + for_each_possible_cpu(i) + seq_printf(p, "CPU%-8d", i); + seq_putc(p, '\n'); + + for (i = 0; i < NR_SOFTIRQS; i++) { + seq_printf(p, "%12s:", softirq_to_name[i]); + for_each_possible_cpu(j) + seq_put_decimal_ull_width(p, " ", kstat_softirqs_cpu(i, j), 10); + seq_putc(p, '\n'); + } + return 0; +} + +static int __init proc_softirqs_init(void) +{ + struct proc_dir_entry *pde; + + pde = proc_create_single("softirqs", 0, NULL, show_softirqs); + pde_make_permanent(pde); + return 0; +} +fs_initcall(proc_softirqs_init); -- cgit v1.3.1