Merge tag 'perf-core-for-mingo-4.21-20190103' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf c2c:

  Jiri Olsa:

  - Change the default coalesce setup to from '--coalesce pid,iaddr' to just '--coalesce iaddr'.

  - Increase the HITM ratio limit for displayed cachelines.

perf script:

  Andi Kleen:

  - Fix LBR skid dump problems in brstackinsn.

perf trace:

  Arnaldo Carvalho de Melo:

  - Check if the raw_syscalls:sys_{enter,exit} are setup before setting tp filter.

  - Do not hardcode the size of the tracepoint common_ fields.

  - Beautify USBDEFFS_ ioctl commands.

  Colin Ian King:

  - Use correct SECCOMP prefix spelling, "SECOMP_*" -> "SECCOMP_*".

perf python:

  Jiri Olsa:

  - Do not force closing original perf descriptor in evlist.get_pollfd().

tools misc:

  Jiri Olsa:

  - Allow overriding CFLAGS and LDFLAGS.

perf build:

  Stanislav Fomichev:

  - Don't unconditionally link the libbfd feature test to -liberty and -lz

thread-stack:

  Adrian Hunter:

  - Fix processing for the idle task, having a stack per cpu.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/perf/trace/beauty/ioctl.c b/tools/perf/trace/beauty/ioctl.c
index 9efeb6a936c2..620350d41209 100644
--- a/tools/perf/trace/beauty/ioctl.c
+++ b/tools/perf/trace/beauty/ioctl.c
@@ -112,6 +112,17 @@ static size_t ioctl__scnprintf_perf_cmd(int nr, int dir, char *bf, size_t size)
 	return scnprintf(bf, size, "(%#x, %#x, %#x)", 0xAE, nr, dir);
 }
 
+static size_t ioctl__scnprintf_usbdevfs_cmd(int nr, int dir, char *bf, size_t size)
+{
+#include "trace/beauty/generated/ioctl/usbdevfs_ioctl_array.c"
+	static DEFINE_STRARRAY(usbdevfs_ioctl_cmds, "");
+
+	if (nr < strarray__usbdevfs_ioctl_cmds.nr_entries && strarray__usbdevfs_ioctl_cmds.entries[nr] != NULL)
+		return scnprintf(bf, size, "USBDEVFS_%s", strarray__usbdevfs_ioctl_cmds.entries[nr]);
+
+	return scnprintf(bf, size, "(%c, %#x, %#x)", 'U', nr, dir);
+}
+
 static size_t ioctl__scnprintf_cmd(unsigned long cmd, char *bf, size_t size, bool show_prefix)
 {
 	const char *prefix = "_IOC_";
@@ -157,9 +168,20 @@ static size_t ioctl__scnprintf_cmd(unsigned long cmd, char *bf, size_t size, boo
 	return printed + scnprintf(bf + printed, size - printed, ", %#x, %#x, %#x)", type, nr, sz);
 }
 
+#ifndef USB_DEVICE_MAJOR
+#define USB_DEVICE_MAJOR 189
+#endif // USB_DEVICE_MAJOR
+
 size_t syscall_arg__scnprintf_ioctl_cmd(char *bf, size_t size, struct syscall_arg *arg)
 {
 	unsigned long cmd = arg->val;
+	unsigned int fd = syscall_arg__val(arg, 0);
+	struct file *file = thread__files_entry(arg->thread, fd);
+
+	if (file != NULL) {
+		if (file->dev_maj == USB_DEVICE_MAJOR)
+			return ioctl__scnprintf_usbdevfs_cmd(_IOC_NR(cmd), _IOC_DIR(cmd), bf, size);
+	}
 
 	return ioctl__scnprintf_cmd(cmd, bf, size, arg->show_string_prefix);
 }