Re: [PATCH v3 06/12] drm/bridge: Add Synopsys DesignWare MIPI DSI host controller driver

kbuild test robot
2015-11-19T04:33:53Z

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Hi Chris,

[auto build test WARNING on: drm/drm-next]
[also build test WARNING on: v4.4-rc1 next-20151118]
[cannot apply to: rockchip/for-next]

url: https://github.com/0day-ci/linux/commits/Chris-Zhong/Add-mipi-dsi-support-for-rk3288/20151119-114228
base: git://people.freedesktop.org/~airlied/linux.git drm-next
config: sparc-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc

All warnings (new ones prefixed by >>):

drivers/gpu/drm/bridge/dw_mipi_dsi.c: In function 'dw_mipi_dsi_dcs_short_write':
>> drivers/gpu/drm/bridge/dw_mipi_dsi.c:525:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=]
msg->tx_len);
^
drivers/gpu/drm/bridge/dw_mipi_dsi.c: In function 'dw_mipi_dsi_dcs_long_write':
drivers/gpu/drm/bridge/dw_mipi_dsi.c:542:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=]
msg->tx_len);
^

vim +525 drivers/gpu/drm/bridge/dw_mipi_dsi.c

509 if (ret < 0) {
510 dev_err(dsi->dev, "failed to write command FIFO\n");
511 return ret;
512 }
513
514 return 0;
515 }
516
517 static int dw_mipi_dsi_dcs_short_write(struct dw_mipi_dsi *dsi,
518 const struct mipi_dsi_msg *msg)
519 {
520 const u16 *tx_buf = msg->tx_buf;
521 u32 val = GEN_HDATA(*tx_buf) | GEN_HTYPE(msg->type);
522
523 if (msg->tx_len > 2) {
524 dev_err(dsi->dev, "too long tx buf length %d for short write\n",
> 525 msg->tx_len);
526 return -EINVAL;
527 }
528
529 return dw_mipi_dsi_gen_pkt_hdr_write(dsi, val);
530 }
531
532 static int dw_mipi_dsi_dcs_long_write(struct dw_mipi_dsi *dsi,
533 const struct mipi_dsi_msg *msg)

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