linux

Gabriel Shahrouzi e8b1d65f0a staging: axis-fifo: Correct handling of tx_fifo_depth for size validation commit `2ca34b5087` upstream. Remove erroneous subtraction of 4 from the total FIFO depth read from device tree. The stored depth is for checking against total capacity, not initial vacancy. This prevented writes near the FIFO's full size. The check performed just before data transfer, which uses live reads of the TDFV register to determine current vacancy, correctly handles the initial Depth - 4 hardware state and subsequent FIFO fullness. Fixes: `4a965c5f89` ("staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core") Cc: stable@vger.kernel.org Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com> Link: https://lore.kernel.org/r/20250419012937.674924-1-gshahrouzi@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2025-05-18 08:24:51 +02:00
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axis-fifo.c	staging: axis-fifo: Correct handling of tx_fifo_depth for size validation	2025-05-18 08:24:51 +02:00
axis-fifo.txt	staging: axis-fifo: avoid parsing ignored device tree properties	2019-11-03 13:09:01 +01:00
Kconfig	staging: axis-fifo: add unspecified HAS_IOMEM dependency	2019-12-17 09:22:11 +01:00
Makefile	staging: add missing SPDX lines to Makefile files	2019-04-03 11:10:15 +02:00
README	staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core	2018-07-24 14:14:13 +02:00