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Re: [Qemu-devel] [PATCH 05/12] audio: expose drv_opaque to init_out and


From: Kővágó Zoltán
Subject: Re: [Qemu-devel] [PATCH 05/12] audio: expose drv_opaque to init_out and init_in
Date: Tue, 02 Jun 2015 12:03:41 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

2015-06-02 09:56 keltezéssel, Gerd Hoffmann írta:
-static int alsa_init_out (HWVoiceOut *hw, struct audsettings *as)
+static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as,
+                         void *drv_opaque)
  {
      ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
      struct alsa_params_req req;
@@ -827,6 +828,8 @@ static int alsa_init_out (HWVoiceOut *hw, struct 
audsettings *as)
      snd_pcm_t *handle;
      struct audsettings obt_as;

+    (void) drv_opaque;
+

What is the reason for this?

To silence compiler warnings about unused variables. I've seen it around different places in the code. But if they are just historic remains, I'll remove them.

Thanks,
Zoltan




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