CVS commit: src/sys/arch/arm/arm32

["Izumi Tsutsui" <tsutsui%netbsd.org@localhost>]

Module Name:    src
Committed By:   tsutsui
Date:           Sun Apr 26 12:52:34 UTC 2026

Modified Files:
        src/sys/arch/arm/arm32: bus_dma.c

Log Message:
arm32/bus_dma: fix interger overflow on 32 bit kernels

On Raspberry Pi 4B with BCM2711, dr_busbase is 0xc0000000 and
dr_len is 0x40000000, so "dr->dr_busbase + dr->dr_len" causes
wraparound.

Fixes panic on Raspberry Pi 4B during attaching vcmbox0:
> panic: _bus_dma_busaddr_to_paddr: curaddr 0xc5b6c000not in range


To generate a diff of this commit:
cvs rdiff -u -r1.155 -r1.156 src/sys/arch/arm/arm32/bus_dma.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.