On Tue, 10 Feb 2015 15:58:54 +0200
Gilad Broner <gbroner@xxxxxxxxxxxxxx> wrote:
I really hate large patches like this. So much to dig through.
> -#ifdef CONFIG_DEBUG_FS
> +#define UIC_ERR_REG_HIST_LENGTH 8
> +/**
> + * struct ufs_uic_err_reg_hist - keeps history of uic errors
> + * @pos: index to indicate cyclic buffer position
> + * @reg: cyclic buffer for registers value
> + * @tstamp: cyclic buffer for time stamp
> + */
> +struct ufs_uic_err_reg_hist {
> + int pos;
> + u32 reg[UIC_ERR_REG_HIST_LENGTH];
> + ktime_t tstamp[UIC_ERR_REG_HIST_LENGTH];
> +};
> +
> +/**
> + * struct ufs_stats - keeps usage/err statistics
> + * @enabled: enable tagstats for debugfs
> + * @tag_stats: pointer to tag statistic counters
> + * @q_depth: current amount of busy slots
> + * @err_stats: counters to keep track of various errors
> + * @hibern8_exit_cnt: Counter to keep track of number of exits,
> + * reset this after link-startup.
> + * @last_hibern8_exit_tstamp: Set time after the hibern8 exit.
> + * Clear after the first successful command completion.
> + * @pa_err: tracks pa-uic errors
> + * @dl_err: tracks dl-uic errors
> + * @nl_err: tracks nl-uic errors
> + * @tl_err: tracks tl-uic errors
> + * @dme_err: tracks dme errors
> + */
> struct ufs_stats {
> +#ifdef CONFIG_DEBUG_FS
> bool enabled;
> u64 **tag_stats;
> int q_depth;
> int err_stats[UFS_ERR_MAX];
> +#endif
Can any of the tracepoint code be called that references these when
CONFIG_DEBUG_FS is not set? Because soon (possibly even this merge
window), tracing will no longer depend on DEBUG_FS, because it will
have its own filesystem.
-- Steve
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