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[73.224.175.84]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7195310a968sm11599877b3.2.2025.07.19.19.21.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Jul 2025 19:21:30 -0700 (PDT) From: Yury Norov To: Linus Walleij , Vinod Koul , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Yury Norov Subject: [PATCH] ste_dma40: simplify d40_handle_interrupt() Date: Sat, 19 Jul 2025 22:21:28 -0400 Message-ID: <20250720022129.437094-1-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Yury Norov (NVIDIA) Use for_each_set_bit() iterator and drop housekeeping code. Signed-off-by: Yury Norov (NVIDIA) Reviewed-by: Linus Walleij --- drivers/dma/ste_dma40.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index d52e1685aed5..6cc76f935c7c 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -1664,7 +1664,7 @@ static irqreturn_t d40_handle_interrupt(int irq, void= *data) int i; u32 idx; u32 row; - long chan =3D -1; + long chan; struct d40_chan *d40c; struct d40_base *base =3D data; u32 *regs =3D base->regs_interrupt; @@ -1677,15 +1677,7 @@ static irqreturn_t d40_handle_interrupt(int irq, voi= d *data) for (i =3D 0; i < il_size; i++) regs[i] =3D readl(base->virtbase + il[i].src); =20 - for (;;) { - - chan =3D find_next_bit((unsigned long *)regs, - BITS_PER_LONG * il_size, chan + 1); - - /* No more set bits found? */ - if (chan =3D=3D BITS_PER_LONG * il_size) - break; - + for_each_set_bit(chan, (unsigned long *)regs, BITS_PER_LONG * il_size) { row =3D chan / BITS_PER_LONG; idx =3D chan & (BITS_PER_LONG - 1); =20 --=20 2.43.0