add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/media/usb/em28xx/em28xx-audio.c
..
..
@@ -30,8 +30,6 @@
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30
 #include <linux/spinlock.h>
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31
 #include <linux/soundcard.h>
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32
 #include <linux/slab.h>
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-#include <linux/vmalloc.h>
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-#include <linux/proc_fs.h>
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 #include <linux/module.h>
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 #include <sound/core.h>
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35
 #include <sound/pcm.h>
..
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@@ -116,6 +114,7 @@
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 		stride = runtime->frame_bits >> 3;
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115
 
118
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 		for (i = 0; i < urb->number_of_packets; i++) {
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+			unsigned long flags;
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118
 			int length =
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119
 			    urb->iso_frame_desc[i].actual_length / stride;
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120
 			cp = (unsigned char *)urb->transfer_buffer +
..
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@@ -137,7 +136,7 @@
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 				       length * stride);
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137
 			}
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138
 
140
-			snd_pcm_stream_lock(substream);
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+			snd_pcm_stream_lock_irqsave(substream, flags);
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140
 
142
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 			dev->adev.hwptr_done_capture += length;
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 			if (dev->adev.hwptr_done_capture >=
..
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@@ -153,7 +152,7 @@
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 				period_elapsed = 1;
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 			}
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154
 
156
-			snd_pcm_stream_unlock(substream);
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+			snd_pcm_stream_unlock_irqrestore(substream, flags);
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156
 		}
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 		if (period_elapsed)
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 			snd_pcm_period_elapsed(substream);
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@@ -188,28 +187,6 @@
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 			return err;
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 		}
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189
 	}
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-
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-	return 0;
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-}
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-
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-static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
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-					size_t size)
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-{
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-	struct em28xx *dev = snd_pcm_substream_chip(subs);
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-	struct snd_pcm_runtime *runtime = subs->runtime;
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-
201
-	dprintk("Allocating vbuffer\n");
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-	if (runtime->dma_area) {
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-		if (runtime->dma_bytes > size)
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-			return 0;
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-
206
-		vfree(runtime->dma_area);
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-	}
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-	runtime->dma_area = vmalloc(size);
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-	if (!runtime->dma_area)
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-		return -ENOMEM;
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-
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-	runtime->dma_bytes = size;
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190
 
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 	return 0;
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192
 }
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@@ -341,59 +318,8 @@
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 	}
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319
 
343
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 	em28xx_audio_analog_set(dev);
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-	if (substream->runtime->dma_area) {
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-		dprintk("freeing\n");
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-		vfree(substream->runtime->dma_area);
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-		substream->runtime->dma_area = NULL;
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-	}
349
321
 	mutex_unlock(&dev->lock);
350
322
 	kref_put(&dev->ref, em28xx_free_device);
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-
352
-	return 0;
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-}
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-
355
-static int snd_em28xx_hw_capture_params(struct snd_pcm_substream *substream,
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-					struct snd_pcm_hw_params *hw_params)
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-{
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-	int ret;
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-	struct em28xx *dev = snd_pcm_substream_chip(substream);
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-
361
-	if (dev->disconnected)
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-		return -ENODEV;
363
-
364
-	dprintk("Setting capture parameters\n");
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-
366
-	ret = snd_pcm_alloc_vmalloc_buffer(substream,
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-					   params_buffer_bytes(hw_params));
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-	if (ret < 0)
369
-		return ret;
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-#if 0
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-	/*
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-	 * TODO: set up em28xx audio chip to deliver the correct audio format,
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-	 * current default is 48000hz multiplexed => 96000hz mono
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-	 * which shouldn't matter since analogue TV only supports mono
375
-	 */
376
-	unsigned int channels, rate, format;
377
-
378
-	format = params_format(hw_params);
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-	rate = params_rate(hw_params);
380
-	channels = params_channels(hw_params);
381
-#endif
382
-
383
-	return 0;
384
-}
385
-
386
-static int snd_em28xx_hw_capture_free(struct snd_pcm_substream *substream)
387
-{
388
-	struct em28xx *dev = snd_pcm_substream_chip(substream);
389
-	struct em28xx_audio *adev = &dev->adev;
390
-
391
-	dprintk("Stop capture, if needed\n");
392
-
393
-	if (atomic_read(&adev->stream_started) > 0) {
394
-		atomic_set(&adev->stream_started, 0);
395
-		schedule_work(&adev->wq_trigger);
396
-	}
397
323
 
398
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 	return 0;
399
325
 }
..
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@@ -436,13 +362,13 @@
436
362
 		return -ENODEV;
437
363
 
438
364
 	switch (cmd) {
439
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
440
-	case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
365
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
366
+	case SNDRV_PCM_TRIGGER_RESUME:
441
367
 	case SNDRV_PCM_TRIGGER_START:
442
368
 		atomic_set(&dev->adev.stream_started, 1);
443
369
 		break;
444
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
445
-	case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
370
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
371
+	case SNDRV_PCM_TRIGGER_SUSPEND:
446
372
 	case SNDRV_PCM_TRIGGER_STOP:
447
373
 		atomic_set(&dev->adev.stream_started, 0);
448
374
 		break;
..
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@@ -469,14 +395,6 @@
469
395
 	spin_unlock_irqrestore(&dev->adev.slock, flags);
470
396
 
471
397
 	return hwptr_done;
472
-}
473
-
474
-static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
475
-					     unsigned long offset)
476
-{
477
-	void *pageptr = subs->runtime->dma_area + offset;
478
-
479
-	return vmalloc_to_page(pageptr);
480
398
 }
481
399
 
482
400
 /*
..
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@@ -708,13 +626,9 @@
708
626
 static const struct snd_pcm_ops snd_em28xx_pcm_capture = {
709
627
 	.open      = snd_em28xx_capture_open,
710
628
 	.close     = snd_em28xx_pcm_close,
711
-	.ioctl     = snd_pcm_lib_ioctl,
712
-	.hw_params = snd_em28xx_hw_capture_params,
713
-	.hw_free   = snd_em28xx_hw_capture_free,
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629
 	.prepare   = snd_em28xx_prepare,
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630
 	.trigger   = snd_em28xx_capture_trigger,
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631
 	.pointer   = snd_em28xx_capture_pointer,
717
-	.page      = snd_pcm_get_vmalloc_page,
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632
 };
719
633
 
720
634
 static void em28xx_audio_free_urb(struct em28xx *dev)
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@@ -842,11 +756,11 @@
842
756
 
843
757
 	dev->adev.transfer_buffer = kcalloc(num_urb,
844
758
 					    sizeof(*dev->adev.transfer_buffer),
845
-					    GFP_ATOMIC);
759
+					    GFP_KERNEL);
846
760
 	if (!dev->adev.transfer_buffer)
847
761
 		return -ENOMEM;
848
762
 
849
-	dev->adev.urb = kcalloc(num_urb, sizeof(*dev->adev.urb), GFP_ATOMIC);
763
+	dev->adev.urb = kcalloc(num_urb, sizeof(*dev->adev.urb), GFP_KERNEL);
850
764
 	if (!dev->adev.urb) {
851
765
 		kfree(dev->adev.transfer_buffer);
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766
 		return -ENOMEM;
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@@ -859,14 +773,14 @@
859
773
 		int j, k;
860
774
 		void *buf;
861
775
 
862
-		urb = usb_alloc_urb(npackets, GFP_ATOMIC);
776
+		urb = usb_alloc_urb(npackets, GFP_KERNEL);
863
777
 		if (!urb) {
864
778
 			em28xx_audio_free_urb(dev);
865
779
 			return -ENOMEM;
866
780
 		}
867
781
 		dev->adev.urb[i] = urb;
868
782
 
869
-		buf = usb_alloc_coherent(udev, npackets * ep_size, GFP_ATOMIC,
783
+		buf = usb_alloc_coherent(udev, npackets * ep_size, GFP_KERNEL,
870
784
 					 &urb->transfer_dma);
871
785
 		if (!buf) {
872
786
 			dev_err(&dev->intf->dev,
..
..
@@ -936,13 +850,14 @@
936
850
 		goto card_free;
937
851
 
938
852
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_em28xx_pcm_capture);
853
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
939
854
 	pcm->info_flags = 0;
940
855
 	pcm->private_data = dev;
941
-	strcpy(pcm->name, "Empia 28xx Capture");
856
+	strscpy(pcm->name, "Empia 28xx Capture", sizeof(pcm->name));
942
857
 
943
-	strcpy(card->driver, "Em28xx-Audio");
944
-	strcpy(card->shortname, "Em28xx Audio");
945
-	strcpy(card->longname, "Empia Em28xx Audio");
858
+	strscpy(card->driver, "Em28xx-Audio", sizeof(card->driver));
859
+	strscpy(card->shortname, "Em28xx Audio", sizeof(card->shortname));
860
+	strscpy(card->longname, "Empia Em28xx Audio", sizeof(card->longname));
946
861
 
947
862
 	INIT_WORK(&adev->wq_trigger, audio_trigger);
948
863