From: Tomer Tayar
compose_device_in_use_info() was added to handle the snprintf() return
value in a single place.
However, the buffer size in print_device_in_use_info() is set such that
it would be enough for the max possible print, so
compose_device_in_use_info() is not really needed.
Moreover, scnprintf() can be used instead of snprintf(), to save the
check if the return value larger than the given size.
Cc: Stanislaw Gruszka
Signed-off-by: Tomer Tayar
Reviewed-by: Oded Gabbay
Signed-off-by: Oded Gabbay
---
drivers/accel/habanalabs/common/device.c | 36 +++-
1 file changed, 10 insertions(+), 26 deletions(-)
diff --git a/drivers/accel/habanalabs/common/device.c
b/drivers/accel/habanalabs/common/device.c
index 99e793dfb126..8db00cb3b71d 100644
--- a/drivers/accel/habanalabs/common/device.c
+++ b/drivers/accel/habanalabs/common/device.c
@@ -482,48 +482,32 @@ int hl_hpriv_put(struct hl_fpriv *hpriv)
return kref_put(&hpriv->refcount, hpriv_release);
}
-static void compose_device_in_use_info(char **buf, size_t *buf_size, const
char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
- int size;
-
- va_start(args, fmt);
- vaf.fmt = fmt;
- vaf.va = &args;
-
- size = snprintf(*buf, *buf_size, "%pV", &vaf);
- if (size >= *buf_size)
- size = *buf_size;
-
- *buf += size;
- *buf_size -= size;
-
- va_end(args);
-}
-
static void print_device_in_use_info(struct hl_device *hdev, const char
*message)
{
u32 active_cs_num, dmabuf_export_cnt;
- char buf[64], *buf_ptr = buf;
- size_t buf_size = sizeof(buf);
bool unknown_reason = true;
+ char buf[128];
+ size_t size;
+ int offset;
+
+ size = sizeof(buf);
+ offset = 0;
active_cs_num = hl_get_active_cs_num(hdev);
if (active_cs_num) {
unknown_reason = false;
- compose_device_in_use_info(&buf_ptr, &buf_size, " [%u active
CS]", active_cs_num);
+ offset += scnprintf(buf + offset, size - offset, " [%u active
CS]", active_cs_num);
}
dmabuf_export_cnt = atomic_read(&hdev->dmabuf_export_cnt);
if (dmabuf_export_cnt) {
unknown_reason = false;
- compose_device_in_use_info(&buf_ptr, &buf_size, " [%u exported
dma-buf]",
- dmabuf_export_cnt);
+ offset += scnprintf(buf + offset, size - offset, " [%u exported
dma-buf]",
+ dmabuf_export_cnt);
}
if (unknown_reason)
- compose_device_in_use_info(&buf_ptr, &buf_size, " [unknown
reason]");
+ scnprintf(buf + offset, size - offset, " [unknown reason]");
dev_notice(hdev->dev, "%s%s\n", message, buf);
}
--
2.39.2
