Re: [PATCH v13 23/24] virt: gunyah: Add ioeventfd
From: Alex Elder <hidden>
Date: 2023-06-09 17:46:45
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On 6/9/23 12:33 PM, Elliot Berman wrote:
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+static int gh_write_ioeventfd(struct gh_vm_io_handler *io_dev, u64 addr, u32 len, u64 data) +{ + struct gh_ioeventfd *iofd = container_of(io_dev, struct gh_ioeventfd, io_handler);Does a write of 0 bytes still signal an event?From gunyah_ioeventfd perspective, yes. I don't think a write of 0 bytes is possible, but maybe you are thinking of scenario I'm not?quoted
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+ + eventfd_signal(iofd->ctx, 1); + return 0; +}
No, I was just observing that eventfd_signal() is called regardless of the value of len. -Alex _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel