From: Dominique van den Broeck <domdev...@free.fr> fwserial: (unexhaustive) coding style review
linux-next commit 88a8e0969581869c742a9957ddcfe43063dff687 Style-only modifications to make checkpatch.pl --file --strict a bit happier. I fixed only what was trivial, such as parenthesis alignments (one of them, at fwserial.c:1349, couldn't be easily replaced by something better, though). However, I did not comment by myself issues regarding spinlocks or memory barriers. This is my very first patch. Please be indulgent and forgive my eventual mistakes. I did that to start contributing to linux kernel, but also as task #10 of the Eudyptula Challenge ( http://eudyptula-challenge.org/ ). Signed-off-by: Dominique van den Broeck <domdev...@free.fr> --- diff -upr a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c --- a/drivers/staging/fwserial/dma_fifo.c 2014-04-11 20:48:20.813667706 +0200 +++ b/drivers/staging/fwserial/dma_fifo.c 2014-04-11 20:47:49.700058306 +0200 @@ -12,10 +12,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/kernel.h> @@ -169,9 +165,9 @@ int dma_fifo_in(struct dma_fifo *fifo, c memcpy(fifo->data, src + l, n - l); if (FAIL(fifo, addr_check(fifo->done, fifo->in, fifo->in + n) || - fifo->avail < n, - "fifo corrupt: in:%u out:%u done:%u n:%d avail:%d", - fifo->in, fifo->out, fifo->done, n, fifo->avail)) + fifo->avail < n, + "fifo corrupt: in:%u out:%u done:%u n:%d avail:%d", + fifo->in, fifo->out, fifo->done, n, fifo->avail)) return -ENXIO; fifo->in += n; @@ -236,12 +232,12 @@ int dma_fifo_out_pend(struct dma_fifo *f ++fifo->open; if (FAIL(fifo, fifo->open > fifo->open_limit, - "past open limit:%d (limit:%d)", - fifo->open, fifo->open_limit)) + "past open limit:%d (limit:%d)", + fifo->open, fifo->open_limit)) return -ENXIO; if (FAIL(fifo, fifo->out & (fifo->align - 1), - "fifo out unaligned:%u (align:%u)", - fifo->out, fifo->align)) + "fifo out unaligned:%u (align:%u)", + fifo->out, fifo->align)) return -ENXIO; return len - n; @@ -264,8 +260,8 @@ int dma_fifo_out_complete(struct dma_fif return -EINVAL; if (FAIL(fifo, list_empty(&fifo->pending) != (fifo->open == 0), - "pending list disagrees with open count:%d", - fifo->open)) + "pending list disagrees with open count:%d", + fifo->open)) return -ENXIO; tmp = complete->data; @@ -282,10 +278,10 @@ int dma_fifo_out_complete(struct dma_fif } if (FAIL(fifo, pending->out != fifo->done || - addr_check(fifo->in, fifo->done, pending->next), - "in:%u out:%u done:%u saved:%u next:%u", - fifo->in, fifo->out, fifo->done, pending->out, - pending->next)) + addr_check(fifo->in, fifo->done, pending->next), + "in:%u out:%u done:%u saved:%u next:%u", + fifo->in, fifo->out, fifo->done, pending->out, + pending->next)) return -ENXIO; list_del_init(&pending->link); @@ -300,7 +296,7 @@ int dma_fifo_out_complete(struct dma_fif if (FAIL(fifo, fifo->open < 0, "open dma:%d < 0", fifo->open)) return -ENXIO; if (FAIL(fifo, fifo->avail > fifo->size, "fifo avail:%d > size:%d", - fifo->avail, fifo->size)) + fifo->avail, fifo->size)) return -ENXIO; return 0; diff -upr a/drivers/staging/fwserial/dma_fifo.h b/drivers/staging/fwserial/dma_fifo.h --- a/drivers/staging/fwserial/dma_fifo.h 2014-04-11 20:48:20.813667706 +0200 +++ b/drivers/staging/fwserial/dma_fifo.h 2014-04-11 20:47:49.700058306 +0200 @@ -12,10 +12,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef _DMA_FIFO_H_ @@ -85,15 +81,15 @@ static inline bool dp_is_completed(struc return (unsigned long)dp->data & 1UL; } -extern void dma_fifo_init(struct dma_fifo *fifo); -extern int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align, - int tx_limit, int open_limit, gfp_t gfp_mask); -extern void dma_fifo_free(struct dma_fifo *fifo); -extern void dma_fifo_reset(struct dma_fifo *fifo); -extern int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n); -extern int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended); -extern int dma_fifo_out_complete(struct dma_fifo *fifo, - struct dma_pending *complete); +void dma_fifo_init(struct dma_fifo *fifo); +int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align, + int tx_limit, int open_limit, gfp_t gfp_mask); +void dma_fifo_free(struct dma_fifo *fifo); +void dma_fifo_reset(struct dma_fifo *fifo); +int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n); +int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended); +int dma_fifo_out_complete(struct dma_fifo *fifo, + struct dma_pending *complete); /* returns the # of used bytes in the fifo */ static inline int dma_fifo_level(struct dma_fifo *fifo) diff -upr a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c --- a/drivers/staging/fwserial/fwserial.c 2014-04-11 20:48:20.813667706 +0200 +++ b/drivers/staging/fwserial/fwserial.c 2014-04-11 20:47:49.701058326 +0200 @@ -12,10 +12,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -530,7 +526,7 @@ static void fwtty_emit_breaks(struct wor while (n) { t = min(n, 16); c = tty_insert_flip_string_fixed_flag(&port->port, buf, - TTY_BREAK, t); + TTY_BREAK, t); n -= c; brk += c; if (c < t) @@ -638,9 +634,9 @@ static void fwtty_port_handler(struct fw switch (tcode) { case TCODE_WRITE_QUADLET_REQUEST: - if (addr != port->rx_handler.offset || len != 4) + if (addr != port->rx_handler.offset || len != 4) { rcode = RCODE_ADDRESS_ERROR; - else { + } else { fwtty_update_port_status(port, *(unsigned *)data); rcode = RCODE_COMPLETE; } @@ -741,7 +737,7 @@ static int fwtty_tx(struct fwtty_port *p /* try to write as many dma transactions out as possible */ n = -EAGAIN; while (!tty->stopped && !tty->hw_stopped && - !test_bit(STOP_TX, &port->flags)) { + !test_bit(STOP_TX, &port->flags)) { txn = kmem_cache_alloc(fwtty_txn_cache, GFP_ATOMIC); if (!txn) { n = -ENOMEM; @@ -756,11 +752,11 @@ static int fwtty_tx(struct fwtty_port *p if (n < 0) { kmem_cache_free(fwtty_txn_cache, txn); - if (n == -EAGAIN) + if (n == -EAGAIN) { ++port->stats.tx_stall; - else if (n == -ENODATA) + } else if (n == -ENODATA) { fwtty_profile_data(port->stats.txns, 0); - else { + } else { ++port->stats.fifo_errs; fwtty_err_ratelimited(port, "fifo err: %d\n", n); @@ -884,7 +880,7 @@ static void fwserial_destroy(struct kref for (j = 0; j < num_ports; ++i, ++j) { port_table_corrupt |= port_table[i] != ports[j]; WARN_ONCE(port_table_corrupt, "port_table[%d]: %p != ports[%d]: %p", - i, port_table[i], j, ports[j]); + i, port_table[i], j, ports[j]); port_table[i] = NULL; } @@ -1257,15 +1253,16 @@ static int set_serial_info(struct fwtty_ return -EFAULT; if (tmp.irq != 0 || tmp.port != 0 || tmp.custom_divisor != 0 || - tmp.baud_base != 400000000) + tmp.baud_base != 400000000) return -EPERM; if (!capable(CAP_SYS_ADMIN)) { if (((tmp.flags & ~ASYNC_USR_MASK) != (port->port.flags & ~ASYNC_USR_MASK))) return -EPERM; - } else + } else { port->port.close_delay = tmp.close_delay * HZ / 100; + } return 0; } @@ -1308,9 +1305,9 @@ static void fwtty_set_termios(struct tty spin_lock_bh(&port->lock); baud = set_termios(port, tty); - if ((baud == 0) && (old->c_cflag & CBAUD)) + if ((baud == 0) && (old->c_cflag & CBAUD)) { port->mctrl &= ~(TIOCM_DTR | TIOCM_RTS); - else if ((baud != 0) && !(old->c_cflag & CBAUD)) { + } else if ((baud != 0) && !(old->c_cflag & CBAUD)) { if (C_CRTSCTS(tty) || !test_bit(TTY_THROTTLED, &tty->flags)) port->mctrl |= TIOCM_DTR | TIOCM_RTS; else @@ -1733,8 +1730,9 @@ static inline int fwserial_send_mgmt_syn rcode == RCODE_GENERATION) { fwtty_dbg(&peer->unit, "mgmt write error: %d\n", rcode); continue; - } else + } else { break; + } } while (--tries > 0); return rcode; } @@ -1818,7 +1816,7 @@ static void fwserial_release_port(struct static void fwserial_plug_timeout(unsigned long data) { - struct fwtty_peer *peer = (struct fwtty_peer *) data; + struct fwtty_peer *peer = (struct fwtty_peer *)data; struct fwtty_port *port; spin_lock_bh(&peer->lock); @@ -2744,9 +2742,9 @@ static int fwserial_parse_mgmt_write(str break; case FWSC_VIRT_CABLE_UNPLUG_RSP: - if (peer->state != FWPS_UNPLUG_PENDING) + if (peer->state != FWPS_UNPLUG_PENDING) { rcode = RCODE_CONFLICT_ERROR; - else { + } else { if (be16_to_cpu(pkt->hdr.code) & FWSC_RSP_NACK) fwtty_notice(&peer->unit, "NACK unplug?\n"); port = peer_revert_state(peer); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
