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can: proc: give variables holding CAN statistics a sensible name
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This patch rename the variables holding the CAN statistics (can_stats
and can_pstats) to pkg_stats and rcv_lists_stats which reflect better
their meaning.

The conversion is done with:

	sed -i \
		-e "s/can_stats\([^_]\)/pkg_stats\1/g" \
		-e "s/can_pstats/rcv_lists_stats/g" \
		net/can/proc.c

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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@marckleinebudde
marckleinebudde committed Sep 4, 2019
1 parent e2c1f5c commit 448c707
Showing 1 changed file with 58 additions and 58 deletions.
116 changes: 58 additions & 58 deletions net/can/proc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -78,21 +78,21 @@ static const char rx_list_name[][8] = {

static void can_init_stats(struct net *net)
{
struct can_pkg_stats *can_stats = net->can.pkg_stats;
struct can_rcv_lists_stats *can_pstats = net->can.rcv_lists_stats;
struct can_pkg_stats *pkg_stats = net->can.pkg_stats;
struct can_rcv_lists_stats *rcv_lists_stats = net->can.rcv_lists_stats;
/*
* This memset function is called from a timer context (when
* can_stattimer is active which is the default) OR in a process
* context (reading the proc_fs when can_stattimer is disabled).
*/
memset(can_stats, 0, sizeof(struct can_pkg_stats));
can_stats->jiffies_init = jiffies;
memset(pkg_stats, 0, sizeof(struct can_pkg_stats));
pkg_stats->jiffies_init = jiffies;

can_pstats->stats_reset++;
rcv_lists_stats->stats_reset++;

if (user_reset) {
user_reset = 0;
can_pstats->user_reset++;
rcv_lists_stats->user_reset++;
}
}

Expand All @@ -119,62 +119,62 @@ static unsigned long calc_rate(unsigned long oldjif, unsigned long newjif,
void can_stat_update(struct timer_list *t)
{
struct net *net = from_timer(net, t, can.can_stattimer);
struct can_pkg_stats *can_stats = net->can.pkg_stats;
struct can_pkg_stats *pkg_stats = net->can.pkg_stats;
unsigned long j = jiffies; /* snapshot */

/* restart counting in timer context on user request */
if (user_reset)
can_init_stats(net);

/* restart counting on jiffies overflow */
if (j < can_stats->jiffies_init)
if (j < pkg_stats->jiffies_init)
can_init_stats(net);

/* prevent overflow in calc_rate() */
if (can_stats->rx_frames > (ULONG_MAX / HZ))
if (pkg_stats->rx_frames > (ULONG_MAX / HZ))
can_init_stats(net);

/* prevent overflow in calc_rate() */
if (can_stats->tx_frames > (ULONG_MAX / HZ))
if (pkg_stats->tx_frames > (ULONG_MAX / HZ))
can_init_stats(net);

/* matches overflow - very improbable */
if (can_stats->matches > (ULONG_MAX / 100))
if (pkg_stats->matches > (ULONG_MAX / 100))
can_init_stats(net);

/* calc total values */
if (can_stats->rx_frames)
can_stats->total_rx_match_ratio = (can_stats->matches * 100) /
can_stats->rx_frames;
if (pkg_stats->rx_frames)
pkg_stats->total_rx_match_ratio = (pkg_stats->matches * 100) /
pkg_stats->rx_frames;

can_stats->total_tx_rate = calc_rate(can_stats->jiffies_init, j,
can_stats->tx_frames);
can_stats->total_rx_rate = calc_rate(can_stats->jiffies_init, j,
can_stats->rx_frames);
pkg_stats->total_tx_rate = calc_rate(pkg_stats->jiffies_init, j,
pkg_stats->tx_frames);
pkg_stats->total_rx_rate = calc_rate(pkg_stats->jiffies_init, j,
pkg_stats->rx_frames);

/* calc current values */
if (can_stats->rx_frames_delta)
can_stats->current_rx_match_ratio =
(can_stats->matches_delta * 100) /
can_stats->rx_frames_delta;
if (pkg_stats->rx_frames_delta)
pkg_stats->current_rx_match_ratio =
(pkg_stats->matches_delta * 100) /
pkg_stats->rx_frames_delta;

can_stats->current_tx_rate = calc_rate(0, HZ, can_stats->tx_frames_delta);
can_stats->current_rx_rate = calc_rate(0, HZ, can_stats->rx_frames_delta);
pkg_stats->current_tx_rate = calc_rate(0, HZ, pkg_stats->tx_frames_delta);
pkg_stats->current_rx_rate = calc_rate(0, HZ, pkg_stats->rx_frames_delta);

/* check / update maximum values */
if (can_stats->max_tx_rate < can_stats->current_tx_rate)
can_stats->max_tx_rate = can_stats->current_tx_rate;
if (pkg_stats->max_tx_rate < pkg_stats->current_tx_rate)
pkg_stats->max_tx_rate = pkg_stats->current_tx_rate;

if (can_stats->max_rx_rate < can_stats->current_rx_rate)
can_stats->max_rx_rate = can_stats->current_rx_rate;
if (pkg_stats->max_rx_rate < pkg_stats->current_rx_rate)
pkg_stats->max_rx_rate = pkg_stats->current_rx_rate;

if (can_stats->max_rx_match_ratio < can_stats->current_rx_match_ratio)
can_stats->max_rx_match_ratio = can_stats->current_rx_match_ratio;
if (pkg_stats->max_rx_match_ratio < pkg_stats->current_rx_match_ratio)
pkg_stats->max_rx_match_ratio = pkg_stats->current_rx_match_ratio;

/* clear values for 'current rate' calculation */
can_stats->tx_frames_delta = 0;
can_stats->rx_frames_delta = 0;
can_stats->matches_delta = 0;
pkg_stats->tx_frames_delta = 0;
pkg_stats->rx_frames_delta = 0;
pkg_stats->matches_delta = 0;

/* restart timer (one second) */
mod_timer(&net->can.can_stattimer, round_jiffies(jiffies + HZ));
Expand Down Expand Up @@ -212,60 +212,60 @@ static void can_print_recv_banner(struct seq_file *m)
static int can_stats_proc_show(struct seq_file *m, void *v)
{
struct net *net = m->private;
struct can_pkg_stats *can_stats = net->can.pkg_stats;
struct can_rcv_lists_stats *can_pstats = net->can.rcv_lists_stats;
struct can_pkg_stats *pkg_stats = net->can.pkg_stats;
struct can_rcv_lists_stats *rcv_lists_stats = net->can.rcv_lists_stats;

seq_putc(m, '\n');
seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats->tx_frames);
seq_printf(m, " %8ld received frames (RXF)\n", can_stats->rx_frames);
seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats->matches);
seq_printf(m, " %8ld transmitted frames (TXF)\n", pkg_stats->tx_frames);
seq_printf(m, " %8ld received frames (RXF)\n", pkg_stats->rx_frames);
seq_printf(m, " %8ld matched frames (RXMF)\n", pkg_stats->matches);

seq_putc(m, '\n');

if (net->can.can_stattimer.function == can_stat_update) {
seq_printf(m, " %8ld %% total match ratio (RXMR)\n",
can_stats->total_rx_match_ratio);
pkg_stats->total_rx_match_ratio);

seq_printf(m, " %8ld frames/s total tx rate (TXR)\n",
can_stats->total_tx_rate);
pkg_stats->total_tx_rate);
seq_printf(m, " %8ld frames/s total rx rate (RXR)\n",
can_stats->total_rx_rate);
pkg_stats->total_rx_rate);

seq_putc(m, '\n');

seq_printf(m, " %8ld %% current match ratio (CRXMR)\n",
can_stats->current_rx_match_ratio);
pkg_stats->current_rx_match_ratio);

seq_printf(m, " %8ld frames/s current tx rate (CTXR)\n",
can_stats->current_tx_rate);
pkg_stats->current_tx_rate);
seq_printf(m, " %8ld frames/s current rx rate (CRXR)\n",
can_stats->current_rx_rate);
pkg_stats->current_rx_rate);

seq_putc(m, '\n');

seq_printf(m, " %8ld %% max match ratio (MRXMR)\n",
can_stats->max_rx_match_ratio);
pkg_stats->max_rx_match_ratio);

seq_printf(m, " %8ld frames/s max tx rate (MTXR)\n",
can_stats->max_tx_rate);
pkg_stats->max_tx_rate);
seq_printf(m, " %8ld frames/s max rx rate (MRXR)\n",
can_stats->max_rx_rate);
pkg_stats->max_rx_rate);

seq_putc(m, '\n');
}

seq_printf(m, " %8ld current receive list entries (CRCV)\n",
can_pstats->rcv_entries);
rcv_lists_stats->rcv_entries);
seq_printf(m, " %8ld maximum receive list entries (MRCV)\n",
can_pstats->rcv_entries_max);
rcv_lists_stats->rcv_entries_max);

if (can_pstats->stats_reset)
if (rcv_lists_stats->stats_reset)
seq_printf(m, "\n %8ld statistic resets (STR)\n",
can_pstats->stats_reset);
rcv_lists_stats->stats_reset);

if (can_pstats->user_reset)
if (rcv_lists_stats->user_reset)
seq_printf(m, " %8ld user statistic resets (USTR)\n",
can_pstats->user_reset);
rcv_lists_stats->user_reset);

seq_putc(m, '\n');
return 0;
Expand All @@ -274,20 +274,20 @@ static int can_stats_proc_show(struct seq_file *m, void *v)
static int can_reset_stats_proc_show(struct seq_file *m, void *v)
{
struct net *net = m->private;
struct can_rcv_lists_stats *can_pstats = net->can.rcv_lists_stats;
struct can_pkg_stats *can_stats = net->can.pkg_stats;
struct can_rcv_lists_stats *rcv_lists_stats = net->can.rcv_lists_stats;
struct can_pkg_stats *pkg_stats = net->can.pkg_stats;

user_reset = 1;

if (net->can.can_stattimer.function == can_stat_update) {
seq_printf(m, "Scheduled statistic reset #%ld.\n",
can_pstats->stats_reset + 1);
rcv_lists_stats->stats_reset + 1);
} else {
if (can_stats->jiffies_init != jiffies)
if (pkg_stats->jiffies_init != jiffies)
can_init_stats(net);

seq_printf(m, "Performed statistic reset #%ld.\n",
can_pstats->stats_reset);
rcv_lists_stats->stats_reset);
}
return 0;
}
Expand Down

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