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Tue, 9 Sep 2025 12:43:34 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id yPCjJfYgwGi6TgAAD6G6ig (envelope-from ); Tue, 09 Sep 2025 12:43:34 +0000 From: Takashi Iwai To: linux-sound@vger.kernel.org Subject: [PATCH 07/14] ALSA: snd_ps3: Use guard() for spin locks Date: Tue, 9 Sep 2025 14:43:27 +0200 Message-ID: <20250909124331.10670-8-tiwai@suse.de> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250909124331.10670-1-tiwai@suse.de> References: <20250909124331.10670-1-tiwai@suse.de> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Level: X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-0.999]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.de:mid,imap1.dmz-prg2.suse.org:helo]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_TLS_ALL(0.00)[] X-Spam-Flag: NO X-Spam-Score: -2.80 Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: Takashi Iwai --- sound/ppc/snd_ps3.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c index ce7ee2713f9d..225b20f0b71a 100644 --- a/sound/ppc/snd_ps3.c +++ b/sound/ppc/snd_ps3.c @@ -221,7 +221,6 @@ static int snd_ps3_program_dma(struct snd_ps3_card_info *card, int fill_stages, dma_ch, stage; enum snd_ps3_ch ch; uint32_t ch0_kick_event = 0; /* initialize to mute gcc */ - unsigned long irqsave; int silent = 0; switch (filltype) { @@ -242,7 +241,7 @@ static int snd_ps3_program_dma(struct snd_ps3_card_info *card, snd_ps3_verify_dma_stop(card, 700, 0); fill_stages = 4; - spin_lock_irqsave(&card->dma_lock, irqsave); + guard(spinlock_irqsave)(&card->dma_lock); for (ch = 0; ch < 2; ch++) { for (stage = 0; stage < fill_stages; stage++) { dma_ch = stage * 2 + ch; @@ -289,7 +288,6 @@ static int snd_ps3_program_dma(struct snd_ps3_card_info *card, } /* ensure the hardware sees the change */ wmb(); - spin_unlock_irqrestore(&card->dma_lock, irqsave); return 0; } @@ -561,7 +559,6 @@ static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream); - unsigned long irqsave; if (!snd_ps3_set_avsetting(substream)) { /* some parameter changed */ @@ -578,8 +575,7 @@ static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream) } /* restart ring buffer pointer */ - spin_lock_irqsave(&card->dma_lock, irqsave); - { + scoped_guard(spinlock_irqsave, &card->dma_lock) { card->dma_buffer_size = runtime->dma_bytes; card->dma_last_transfer_vaddr[SND_PS3_CH_L] = @@ -600,7 +596,6 @@ static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream) card->dma_start_bus_addr[SND_PS3_CH_L]); } - spin_unlock_irqrestore(&card->dma_lock, irqsave); /* ensure the hardware sees the change */ mb(); @@ -618,11 +613,9 @@ static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream, /* clear outstanding interrupts */ update_reg(PS3_AUDIO_AX_IS, 0); - spin_lock(&card->dma_lock); - { + scoped_guard(spinlock, &card->dma_lock) { card->running = 1; } - spin_unlock(&card->dma_lock); snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL); @@ -636,11 +629,9 @@ static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream, break; case SNDRV_PCM_TRIGGER_STOP: - spin_lock(&card->dma_lock); - { + scoped_guard(spinlock, &card->dma_lock) { card->running = 0; } - spin_unlock(&card->dma_lock); snd_ps3_wait_for_dma_stop(card); break; default: @@ -661,12 +652,10 @@ static snd_pcm_uframes_t snd_ps3_pcm_pointer( size_t bytes; snd_pcm_uframes_t ret; - spin_lock(&card->dma_lock); - { + scoped_guard(spinlock, &card->dma_lock) { bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] - card->dma_start_vaddr[SND_PS3_CH_L]); } - spin_unlock(&card->dma_lock); ret = bytes_to_frames(substream->runtime, bytes * 2); -- 2.50.1