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yaml
---
r: 54860
b: refs/heads/master
c: ce71b0f
h: refs/heads/master
v: v3
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Jiri Slaby authored and Linus Torvalds committed May 8, 2007
1 parent f215ea6 commit 4ca6957
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Showing 2 changed files with 17 additions and 19 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2c7fea992104b5ca2b510d585a27b3ba018b795f
refs/heads/master: ce71b0ffd01b0917a74c03562aaa110a71a0ee29
34 changes: 16 additions & 18 deletions trunk/drivers/char/cyclades.c
Original file line number Diff line number Diff line change
Expand Up @@ -1560,7 +1560,7 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
int char_count;
int len;
#ifdef BLOCKMOVE
int small_count;
unsigned char *buf;
#else
char data;
#endif
Expand Down Expand Up @@ -1596,25 +1596,23 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
/* we'd like to use memcpy(t, f, n) and memset(s, c, count)
for performance, but because of buffer boundaries, there
may be several steps to the operation */
while (0 < (small_count = min_t(unsigned int,
rx_bufsize - new_rx_get,
min_t(unsigned int, TTY_FLIPBUF_SIZE -
tty->flip.count, char_count)))){
memcpy_fromio(tty->flip.char_buf_ptr,
(char *)(cinfo->base_addr + rx_bufaddr +
new_rx_get),
small_count);
while (1) {
len = tty_prepare_flip_string(tty, &buf,
char_count);
if (!len)
break;

tty->flip.char_buf_ptr += small_count;
memset(tty->flip.flag_buf_ptr, TTY_NORMAL,
small_count);
tty->flip.flag_buf_ptr += small_count;
new_rx_get = (new_rx_get + small_count) &
len = min_t(unsigned int, min(len, char_count),
rx_bufsize - new_rx_get);

memcpy_fromio(buf, cinfo->base_addr +
rx_bufaddr + new_rx_get, len);

new_rx_get = (new_rx_get + len) &
(rx_bufsize - 1);
char_count -= small_count;
info->icount.rx += small_count;
info->idle_stats.recv_bytes += small_count;
tty->flip.count += small_count;
char_count -= len;
info->icount.rx += len;
info->idle_stats.recv_bytes += len;
}
#else
len = tty_buffer_request_room(tty, char_count);
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