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

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Message-ID: <201511191228.qAMU6twV%fengguang.wu@intel.com>
Date:	Thu, 19 Nov 2015 12:33:15 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Chris Zhong <zyw@...k-chips.com>
Cc:	kbuild-all@...org, heiko@...ech.de,
	linux-rockchip@...ts.infradead.org,
	Mark Yao <mark.yao@...k-chips.com>,
	Chris Zhong <zyw@...k-chips.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Vincent Palatin <vpalatin@...omium.org>,
	Andrew Bresticker <abrestic@...omium.org>,
	Thierry Reding <treding@...dia.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	Inki Dae <inki.dae@...sung.com>,
	Andy Yan <andy.yan@...k-chips.com>,
	David Airlie <airlied@...ux.ie>,
	Ajay Kumar <ajaykumar.rs@...sung.com>
Subject: Re: [PATCH v3 06/12] drm/bridge: Add Synopsys DesignWare MIPI DSI
 host controller driver

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)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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