Odp: [PATCH 1/4] tridentfb: fix hang on Blade3D with CONFIG_CC_OPTIMIZE_FOR_SIZE

Acked-by: Krzysztof Helt Dnia Sobota, 7 Lutego 2015 21:53 Ondrej Zary napisał(a) > When the kernel is compiled with -Os (CONFIG_CC_OPTIMIZE_FOR_SIZE), tridentfb > hangs the machine upon load with Blade3D cards unless acceleration is > disabled. > > This is caused by memcpy() which copies dat

[PATCH 1/4] tridentfb: fix hang on Blade3D with CONFIG_CC_OPTIMIZE_FOR_SIZE

When the kernel is compiled with -Os (CONFIG_CC_OPTIMIZE_FOR_SIZE), tridentfb hangs the machine upon load with Blade3D cards unless acceleration is disabled. This is caused by memcpy() which copies data byte-by-byte (rep movsb) when compiled with -Os. The card does not like that - it requires 32-b