Re: [RESEND PATCH v3 2/2] ufs: poll HCS.UCRDY before issuing a UIC command

From: Bart Van Assche
Date: Thu Aug 17 2023 - 11:04:00 EST


On 8/14/23 04:26, Adrian Hunter wrote:
And perhaps the following is neater:

u32 val;

return !read_poll_timeout(ufshcd_readl, val, val & UIC_COMMAND_READY,
500, UIC_CMD_TIMEOUT * 1000, false, hba,
REG_CONTROLLER_STATUS);

Would the above make readers of that code wonder whether read_poll_timeout()
perhaps returns a boolean? Wouldn't it be better to test the
read_poll_timeout() return value as follows?

return read_poll_timeout(ufshcd_readl, val, val & UIC_COMMAND_READY,
500, UIC_CMD_TIMEOUT * 1000, false, hba,
REG_CONTROLLER_STATUS) == 0;

Thanks,

Bart.