Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
firewire: ohci: use MAX macro to guarantee minimum count of pages for AR contexts
The computation of page size for AR DMA context can be simplified by MAX
macro.
Link: https://lore.kernel.org/r/20260110013911.19160-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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drivers/firewire/ohci.c
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drivers/firewire/ohci.c
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#define AR_BUFFER_SIZE (32*1024)
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#define AR_BUFFERS_MIN DIV_ROUND_UP(AR_BUFFER_SIZE, PAGE_SIZE)
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/* we need at least two pages for proper list management */
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#define AR_BUFFERS (AR_BUFFERS_MIN >= 2 ? AR_BUFFERS_MIN : 2)
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#define AR_BUFFERS MAX(2, AR_BUFFERS_MIN)
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#define MAX_ASYNC_PAYLOAD 4096
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#define MAX_AR_PACKET_SIZE (16 + MAX_ASYNC_PAYLOAD + 4)