Re: [PATCH] ALSA: hda - constify and cleanup static NodeID tables

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On Fri, 03 Jan 2020 10:23:48 +0100,
Michał Mirosław wrote:
> 
> Make hda_nid_t tables static const, as they are not intended to be
> modified by callees.
> 
> ---
> * patch against tiwai/sound/topic/constification branch
> 
> Signed-off-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>

Nice catch, I queued to topic/constification branch.

I've looked at only static struct, so this wasn't covered by my
series.  There must be more such remaining things.


thanks,

Takashi

> ---
>  sound/pci/hda/hda_generic.c    |  4 +--
>  sound/pci/hda/patch_analog.c   |  6 ++--
>  sound/pci/hda/patch_ca0132.c   | 12 +++----
>  sound/pci/hda/patch_conexant.c |  6 ++--
>  sound/pci/hda/patch_realtek.c  | 62 +++++++++++++++++-----------------
>  sound/pci/hda/patch_sigmatel.c |  4 +--
>  sound/pci/hda/patch_via.c      |  4 +--
>  7 files changed, 49 insertions(+), 49 deletions(-)
> 
> diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
> index 10d502328b76..fc001c64ef20 100644
> --- a/sound/pci/hda/hda_generic.c
> +++ b/sound/pci/hda/hda_generic.c
> @@ -4401,7 +4401,7 @@ EXPORT_SYMBOL_GPL(snd_hda_gen_fix_pin_power);
>   */
>  
>  /* check each pin in the given array; returns true if any of them is plugged */
> -static bool detect_jacks(struct hda_codec *codec, int num_pins, hda_nid_t *pins)
> +static bool detect_jacks(struct hda_codec *codec, int num_pins, const hda_nid_t *pins)
>  {
>  	int i;
>  	bool present = false;
> @@ -4420,7 +4420,7 @@ static bool detect_jacks(struct hda_codec *codec, int num_pins, hda_nid_t *pins)
>  }
>  
>  /* standard HP/line-out auto-mute helper */
> -static void do_automute(struct hda_codec *codec, int num_pins, hda_nid_t *pins,
> +static void do_automute(struct hda_codec *codec, int num_pins, const hda_nid_t *pins,
>  			int *paths, bool mute)
>  {
>  	struct hda_gen_spec *spec = codec->spec;
> diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
> index bc9dd8e6fd86..c64895f99299 100644
> --- a/sound/pci/hda/patch_analog.c
> +++ b/sound/pci/hda/patch_analog.c
> @@ -389,7 +389,7 @@ static int patch_ad1986a(struct hda_codec *codec)
>  {
>  	int err;
>  	struct ad198x_spec *spec;
> -	static hda_nid_t preferred_pairs[] = {
> +	static const hda_nid_t preferred_pairs[] = {
>  		0x1a, 0x03,
>  		0x1b, 0x03,
>  		0x1c, 0x04,
> @@ -519,9 +519,9 @@ static int ad1983_add_spdif_mux_ctl(struct hda_codec *codec)
>  
>  static int patch_ad1983(struct hda_codec *codec)
>  {
> +	static const hda_nid_t conn_0c[] = { 0x08 };
> +	static const hda_nid_t conn_0d[] = { 0x09 };
>  	struct ad198x_spec *spec;
> -	static hda_nid_t conn_0c[] = { 0x08 };
> -	static hda_nid_t conn_0d[] = { 0x09 };
>  	int err;
>  
>  	err = alloc_ad_spec(codec);
> diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
> index 32ed46464af7..250534f90ce0 100644
> --- a/sound/pci/hda/patch_ca0132.c
> +++ b/sound/pci/hda/patch_ca0132.c
> @@ -7802,23 +7802,23 @@ static void sbz_region2_exit(struct hda_codec *codec)
>  
>  static void sbz_set_pin_ctl_default(struct hda_codec *codec)
>  {
> -	hda_nid_t pins[5] = {0x0B, 0x0C, 0x0E, 0x12, 0x13};
> +	static const hda_nid_t pins[] = {0x0B, 0x0C, 0x0E, 0x12, 0x13};
>  	unsigned int i;
>  
>  	snd_hda_codec_write(codec, 0x11, 0,
>  			AC_VERB_SET_PIN_WIDGET_CONTROL, 0x40);
>  
> -	for (i = 0; i < 5; i++)
> +	for (i = 0; i < ARRAY_SIZE(pins); i++)
>  		snd_hda_codec_write(codec, pins[i], 0,
>  				AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00);
>  }
>  
>  static void ca0132_clear_unsolicited(struct hda_codec *codec)
>  {
> -	hda_nid_t pins[7] = {0x0B, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13};
> +	static const hda_nid_t pins[] = {0x0B, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13};
>  	unsigned int i;
>  
> -	for (i = 0; i < 7; i++) {
> +	for (i = 0; i < ARRAY_SIZE(pins); i++) {
>  		snd_hda_codec_write(codec, pins[i], 0,
>  				AC_VERB_SET_UNSOLICITED_ENABLE, 0x00);
>  	}
> @@ -7842,10 +7842,10 @@ static void sbz_gpio_shutdown_commands(struct hda_codec *codec, int dir,
>  
>  static void zxr_dbpro_power_state_shutdown(struct hda_codec *codec)
>  {
> -	hda_nid_t pins[7] = {0x05, 0x0c, 0x09, 0x0e, 0x08, 0x11, 0x01};
> +	static const hda_nid_t pins[] = {0x05, 0x0c, 0x09, 0x0e, 0x08, 0x11, 0x01};
>  	unsigned int i;
>  
> -	for (i = 0; i < 7; i++)
> +	for (i = 0; i < ARRAY_SIZE(pins); i++)
>  		snd_hda_codec_write(codec, pins[i], 0,
>  				AC_VERB_SET_POWER_STATE, 0x03);
>  }
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index 90aa0f400a57..9853e00a0816 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -116,7 +116,7 @@ static void cx_auto_parse_eapd(struct hda_codec *codec)
>  }
>  
>  static void cx_auto_turn_eapd(struct hda_codec *codec, int num_pins,
> -			      hda_nid_t *pins, bool on)
> +			      const hda_nid_t *pins, bool on)
>  {
>  	int i;
>  	for (i = 0; i < num_pins; i++) {
> @@ -959,10 +959,10 @@ static const struct hda_model_fixup cxt5066_fixup_models[] = {
>  static void add_cx5051_fake_mutes(struct hda_codec *codec)
>  {
>  	struct conexant_spec *spec = codec->spec;
> -	static hda_nid_t out_nids[] = {
> +	static const hda_nid_t out_nids[] = {
>  		0x10, 0x11, 0
>  	};
> -	hda_nid_t *p;
> +	const hda_nid_t *p;
>  
>  	for (p = out_nids; *p; p++)
>  		snd_hda_override_amp_caps(codec, *p, HDA_OUTPUT,
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index dbfafee97931..5bb1959dae0f 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -464,10 +464,10 @@ static void set_eapd(struct hda_codec *codec, hda_nid_t nid, int on)
>  static void alc_auto_setup_eapd(struct hda_codec *codec, bool on)
>  {
>  	/* We currently only handle front, HP */
> -	static hda_nid_t pins[] = {
> +	static const hda_nid_t pins[] = {
>  		0x0f, 0x10, 0x14, 0x15, 0x17, 0
>  	};
> -	hda_nid_t *p;
> +	const hda_nid_t *p;
>  	for (p = pins; *p; p++)
>  		set_eapd(codec, *p, on);
>  }
> @@ -1935,19 +1935,19 @@ static void alc889_fixup_dac_route(struct hda_codec *codec,
>  {
>  	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
>  		/* fake the connections during parsing the tree */
> -		hda_nid_t conn1[2] = { 0x0c, 0x0d };
> -		hda_nid_t conn2[2] = { 0x0e, 0x0f };
> -		snd_hda_override_conn_list(codec, 0x14, 2, conn1);
> -		snd_hda_override_conn_list(codec, 0x15, 2, conn1);
> -		snd_hda_override_conn_list(codec, 0x18, 2, conn2);
> -		snd_hda_override_conn_list(codec, 0x1a, 2, conn2);
> +		static const hda_nid_t conn1[] = { 0x0c, 0x0d };
> +		static const hda_nid_t conn2[] = { 0x0e, 0x0f };
> +		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn1), conn1);
> +		snd_hda_override_conn_list(codec, 0x15, ARRAY_SIZE(conn1), conn1);
> +		snd_hda_override_conn_list(codec, 0x18, ARRAY_SIZE(conn2), conn2);
> +		snd_hda_override_conn_list(codec, 0x1a, ARRAY_SIZE(conn2), conn2);
>  	} else if (action == HDA_FIXUP_ACT_PROBE) {
>  		/* restore the connections */
> -		hda_nid_t conn[5] = { 0x0c, 0x0d, 0x0e, 0x0f, 0x26 };
> -		snd_hda_override_conn_list(codec, 0x14, 5, conn);
> -		snd_hda_override_conn_list(codec, 0x15, 5, conn);
> -		snd_hda_override_conn_list(codec, 0x18, 5, conn);
> -		snd_hda_override_conn_list(codec, 0x1a, 5, conn);
> +		static const hda_nid_t conn[] = { 0x0c, 0x0d, 0x0e, 0x0f, 0x26 };
> +		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn), conn);
> +		snd_hda_override_conn_list(codec, 0x15, ARRAY_SIZE(conn), conn);
> +		snd_hda_override_conn_list(codec, 0x18, ARRAY_SIZE(conn), conn);
> +		snd_hda_override_conn_list(codec, 0x1a, ARRAY_SIZE(conn), conn);
>  	}
>  }
>  
> @@ -1955,8 +1955,8 @@ static void alc889_fixup_dac_route(struct hda_codec *codec,
>  static void alc889_fixup_mbp_vref(struct hda_codec *codec,
>  				  const struct hda_fixup *fix, int action)
>  {
> +	static const hda_nid_t nids[] = { 0x14, 0x15, 0x19 };
>  	struct alc_spec *spec = codec->spec;
> -	static hda_nid_t nids[3] = { 0x14, 0x15, 0x19 };
>  	int i;
>  
>  	if (action != HDA_FIXUP_ACT_INIT)
> @@ -1992,7 +1992,7 @@ static void alc889_fixup_mac_pins(struct hda_codec *codec,
>  static void alc889_fixup_imac91_vref(struct hda_codec *codec,
>  				     const struct hda_fixup *fix, int action)
>  {
> -	static hda_nid_t nids[2] = { 0x18, 0x1a };
> +	static const hda_nid_t nids[] = { 0x18, 0x1a };
>  
>  	if (action == HDA_FIXUP_ACT_INIT)
>  		alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
> @@ -2002,7 +2002,7 @@ static void alc889_fixup_imac91_vref(struct hda_codec *codec,
>  static void alc889_fixup_mba11_vref(struct hda_codec *codec,
>  				    const struct hda_fixup *fix, int action)
>  {
> -	static hda_nid_t nids[1] = { 0x18 };
> +	static const hda_nid_t nids[] = { 0x18 };
>  
>  	if (action == HDA_FIXUP_ACT_INIT)
>  		alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
> @@ -2012,7 +2012,7 @@ static void alc889_fixup_mba11_vref(struct hda_codec *codec,
>  static void alc889_fixup_mba21_vref(struct hda_codec *codec,
>  				    const struct hda_fixup *fix, int action)
>  {
> -	static hda_nid_t nids[2] = { 0x18, 0x19 };
> +	static const hda_nid_t nids[] = { 0x18, 0x19 };
>  
>  	if (action == HDA_FIXUP_ACT_INIT)
>  		alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
> @@ -2094,7 +2094,7 @@ static void alc1220_fixup_clevo_p950(struct hda_codec *codec,
>  				     const struct hda_fixup *fix,
>  				     int action)
>  {
> -	hda_nid_t conn1[1] = { 0x0c };
> +	static const hda_nid_t conn1[] = { 0x0c };
>  
>  	if (action != HDA_FIXUP_ACT_PRE_PROBE)
>  		return;
> @@ -2103,8 +2103,8 @@ static void alc1220_fixup_clevo_p950(struct hda_codec *codec,
>  	/* We therefore want to make sure 0x14 (front headphone) and
>  	 * 0x1b (speakers) use the stereo DAC 0x02
>  	 */
> -	snd_hda_override_conn_list(codec, 0x14, 1, conn1);
> -	snd_hda_override_conn_list(codec, 0x1b, 1, conn1);
> +	snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn1), conn1);
> +	snd_hda_override_conn_list(codec, 0x1b, ARRAY_SIZE(conn1), conn1);
>  }
>  
>  static void alc_fixup_headset_mode_no_hp_mic(struct hda_codec *codec,
> @@ -5243,7 +5243,7 @@ static void alc_fixup_tpt470_dock(struct hda_codec *codec,
>  	 * the speaker output becomes too low by some reason on Thinkpads with
>  	 * ALC298 codec
>  	 */
> -	static hda_nid_t preferred_pairs[] = {
> +	static const hda_nid_t preferred_pairs[] = {
>  		0x14, 0x03, 0x17, 0x02, 0x21, 0x02,
>  		0
>  	};
> @@ -5515,9 +5515,9 @@ static void alc290_fixup_mono_speakers(struct hda_codec *codec,
>  		/* DAC node 0x03 is giving mono output. We therefore want to
>  		   make sure 0x14 (front speaker) and 0x15 (headphones) use the
>  		   stereo DAC, while leaving 0x17 (bass speaker) for node 0x03. */
> -		hda_nid_t conn1[2] = { 0x0c };
> -		snd_hda_override_conn_list(codec, 0x14, 1, conn1);
> -		snd_hda_override_conn_list(codec, 0x15, 1, conn1);
> +		static const hda_nid_t conn1[] = { 0x0c };
> +		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn1), conn1);
> +		snd_hda_override_conn_list(codec, 0x15, ARRAY_SIZE(conn1), conn1);
>  	}
>  }
>  
> @@ -5532,8 +5532,8 @@ static void alc298_fixup_speaker_volume(struct hda_codec *codec,
>  		   Pin Complex), since Node 0x02 has Amp-out caps, we can adjust
>  		   speaker's volume now. */
>  
> -		hda_nid_t conn1[1] = { 0x0c };
> -		snd_hda_override_conn_list(codec, 0x17, 1, conn1);
> +		static const hda_nid_t conn1[] = { 0x0c };
> +		snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn1), conn1);
>  	}
>  }
>  
> @@ -5542,8 +5542,8 @@ static void alc295_fixup_disable_dac3(struct hda_codec *codec,
>  				      const struct hda_fixup *fix, int action)
>  {
>  	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
> -		hda_nid_t conn[2] = { 0x02, 0x03 };
> -		snd_hda_override_conn_list(codec, 0x17, 2, conn);
> +		static const hda_nid_t conn[] = { 0x02, 0x03 };
> +		snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn), conn);
>  	}
>  }
>  
> @@ -5552,8 +5552,8 @@ static void alc285_fixup_speaker2_to_dac1(struct hda_codec *codec,
>  					  const struct hda_fixup *fix, int action)
>  {
>  	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
> -		hda_nid_t conn[1] = { 0x02 };
> -		snd_hda_override_conn_list(codec, 0x17, 1, conn);
> +		static const hda_nid_t conn[] = { 0x02 };
> +		snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn), conn);
>  	}
>  }
>  
> @@ -5631,7 +5631,7 @@ static void alc274_fixup_bind_dacs(struct hda_codec *codec,
>  				    const struct hda_fixup *fix, int action)
>  {
>  	struct alc_spec *spec = codec->spec;
> -	static hda_nid_t preferred_pairs[] = {
> +	static const hda_nid_t preferred_pairs[] = {
>  		0x21, 0x03, 0x1b, 0x03, 0x16, 0x02,
>  		0
>  	};
> diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
> index 9b816b377547..a608d0486ae4 100644
> --- a/sound/pci/hda/patch_sigmatel.c
> +++ b/sound/pci/hda/patch_sigmatel.c
> @@ -795,7 +795,7 @@ static int find_mute_led_cfg(struct hda_codec *codec, int default_polarity)
>  static bool has_builtin_speaker(struct hda_codec *codec)
>  {
>  	struct sigmatel_spec *spec = codec->spec;
> -	hda_nid_t *nid_pin;
> +	const hda_nid_t *nid_pin;
>  	int nids, i;
>  
>  	if (spec->gen.autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT) {
> @@ -2182,7 +2182,7 @@ static void hp_envy_ts_fixup_dac_bind(struct hda_codec *codec,
>  					    int action)
>  {
>  	struct sigmatel_spec *spec = codec->spec;
> -	static hda_nid_t preferred_pairs[] = {
> +	static const hda_nid_t preferred_pairs[] = {
>  		0xd, 0x13,
>  		0
>  	};
> diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
> index 29dcdb8b36db..b40d01e01832 100644
> --- a/sound/pci/hda/patch_via.c
> +++ b/sound/pci/hda/patch_via.c
> @@ -1038,8 +1038,8 @@ static const struct snd_pci_quirk vt2002p_fixups[] = {
>   */
>  static void fix_vt1802_connections(struct hda_codec *codec)
>  {
> -	static hda_nid_t conn_24[] = { 0x14, 0x1c };
> -	static hda_nid_t conn_33[] = { 0x1c };
> +	static const hda_nid_t conn_24[] = { 0x14, 0x1c };
> +	static const hda_nid_t conn_33[] = { 0x1c };
>  
>  	snd_hda_override_conn_list(codec, 0x24, ARRAY_SIZE(conn_24), conn_24);
>  	snd_hda_override_conn_list(codec, 0x33, ARRAY_SIZE(conn_33), conn_33);
> -- 
> 2.20.1
> 
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