[PATCH 4/4] ALSA: usb-audio: qcom: Use PAGE_ALIGN macro for buffer size calculation

[wangdich9700]

From: wangdicheng <wangdicheng@xxxxxxxxxx>

Use the kernel's PAGE_ALIGN() macro instead of open-coding the page
alignment calculation. This improves code readability and follows
kernel coding style.

The manual calculation:
  mult = len / PAGE_SIZE;
  remainder = len % PAGE_SIZE;
  len = mult * PAGE_SIZE;
  len += remainder ? PAGE_SIZE : 0;

is equivalent to:
  len = PAGE_ALIGN(len);

Signed-off-by: wangdicheng <wangdicheng@xxxxxxxxxx>
---
 sound/usb/qcom/qc_audio_offload.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c
index fa7ee61d6934..32982318fbed 100644
--- a/sound/usb/qcom/qc_audio_offload.c
+++ b/sound/usb/qcom/qc_audio_offload.c
@@ -1052,10 +1052,7 @@ static int uaudio_transfer_buffer_setup(struct snd_usb_substream *subs,
 	if (!len)
 		len = PAGE_SIZE;
 
-	mult = len / PAGE_SIZE;
-	remainder = len % PAGE_SIZE;
-	len = mult * PAGE_SIZE;
-	len += remainder ? PAGE_SIZE : 0;
+	len = PAGE_ALIGN(len);
 
 	if (len > MAX_XFER_BUFF_LEN) {
 		dev_err(uaudio_qdev->data->dev,
-- 
2.25.1