linux-kernel - [PATCH v5 0/3] media: rc: ir-spi: allocate buffer dynamically

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Message-ID: <20250613112210.22731-1-demonsingur@gmail.com>
Date: Fri, 13 Jun 2025 14:21:50 +0300
From: Cosmin Tanislav <demonsingur@...il.com>
To: 
Cc: Sean Young <sean@...s.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Cosmin Tanislav <demonsingur@...il.com>
Subject: [PATCH v5 0/3] media: rc: ir-spi: allocate buffer dynamically

Replace the static transmit buffer with a dynamically allocated one,
removing the limit imposed on the number of pulses to transmit.

Add a check to constrain the carrier frequency inside
ir_spi_set_tx_carrier().

Switch to u64 arithmetic to ir_spi_tx() when calculating the number
of pulses to transmit.

V5:
 * add separate patch to solve overflow issues in ir_spi_tx()
 * avoid overflow in carrier frequency constraint

V4:
 * add separate patch to constrain the carrier frequency

V3:
 * move the allocation to be done per-TX operation

V2:
 * use devm_krealloc_array

Cosmin Tanislav (3):
  media: rc: ir-spi: allocate buffer dynamically
  media: rc: ir-spi: constrain carrier frequency
  media: rc: ir-spi: avoid overflow in multiplication

 drivers/media/rc/ir-spi.c | 40 +++++++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 14 deletions(-)

-- 
2.49.0