Messages in this thread | | | Subject | Re: [PATCH] Bluetooth: Add hci_h4p driver | From | Joe Perches <> | Date | Thu, 24 Oct 2013 11:41:53 -0700 |
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On Fri, 2013-10-18 at 12:30 +0200, Pali Rohár wrote:
> I rebased patch on top of https://git.kernel.org/cgit/linux/kernel/git/bluetooth/bluetooth-next.git branch master
Hi Pali, just some trivial notes:
[]
+static ssize_t hci_h4p_show_bdaddr(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct hci_h4p_info *info = dev_get_drvdata(dev); > + > + return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", > + info->bd_addr[0], info->bd_addr[1], info->bd_addr[2], > + info->bd_addr[3], info->bd_addr[4], info->bd_addr[5]);
sprintf(buf, "%pM", info->bd_addr)
and if this is really bluetooth, does the output need to be emitted in reverse order? ie: %pMR
[]
> +#define NBT_DBG(fmt, arg...) \ > + pr_debug("%s: " fmt "" , __func__ , ## arg) > + > +#define NBT_DBG_FW(fmt, arg...) \ > + pr_debug("%s: " fmt "" , __func__ , ## arg) > + > +#define NBT_DBG_POWER(fmt, arg...) \ > + pr_debug("%s: " fmt "" , __func__ , ## arg) > + > +#define NBT_DBG_TRANSFER(fmt, arg...) \ > + pr_debug("%s: " fmt "" , __func__ , ## arg) > + > +#define NBT_DBG_TRANSFER_NF(fmt, arg...) \ > + pr_debug(fmt "" , ## arg) > + > +#define NBT_DBG_DMA(fmt, arg...) \ > + pr_debug("%s: " fmt "" , __func__ , ## arg)
The "" isn't useful.
dynamic_debugging can add __func__ to each message output with +f.
I think all of these should be converted to pr_debug where used or consolidated into a single #define nbt_dbg(mask, fmt, ...) \ do { \ if (mask & debug) \ pr_debug(fmt, ##__VA_ARGS__); } while (0)
and used like: nbt_dbg(TRANSFER, fmt, etc...); where debug is some static.
Also there are many uses missing "\n" which can cause interleaving problems with other printks.
[]
> +int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, > + int timeout_ms) > +{ > + unsigned long timeout; > + int state; > + > + timeout = jiffies + msecs_to_jiffies(timeout_ms); > + for (;;) {
while (time_before(jiffies, timeout)) {
> + state = hci_h4p_inb(info, UART_MSR) & UART_MSR_CTS; > + if (active) { > + if (state) > + return 0; > + } else { > + if (!state) > + return 0; > + } > + if (time_after(jiffies, timeout)) > + return -ETIMEDOUT;
> + msleep(1); > + }
return -ETIMEDOUT;
> +}
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