From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: Re: [PATCH v5 2/2] drm: bridge: cdns-mhdp8546: Enable HDCP
Date: Sat, 20 Mar 2021 15:34:51 +0800 [thread overview]
Message-ID: <202103201535.SAevwNYa-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
In-Reply-To: <1616146736-7423-1-git-send-email-pthombar@cadence.com>
References: <1616146736-7423-1-git-send-email-pthombar@cadence.com>
TO: Parshuram Thombare <pthombar@cadence.com>
TO: robert.foss(a)linaro.org
TO: robh+dt(a)kernel.org
TO: laurent.pinchart(a)ideasonboard.com
TO: airlied(a)linux.ie
TO: daniel(a)ffwll.ch
CC: dri-devel(a)lists.freedesktop.org
CC: devicetree(a)vger.kernel.org
CC: linux-kernel(a)vger.kernel.org
CC: a.hajda(a)samsung.com
CC: narmstrong(a)baylibre.com
Hi Parshuram,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on robh/for-next]
[also build test WARNING on linux/master linus/master v5.12-rc3 next-20210319]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Parshuram-Thombare/enable-HDCP-in-Cadence-MHDP-bridge-driver/20210319-174219
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
:::::: branch date: 22 hours ago
:::::: commit date: 22 hours ago
config: i386-randconfig-m021-20210320 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c:426 _cdns_mhdp_hdcp_enable() error: uninitialized symbol 'ret'.
vim +/ret +426 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
e222d14a2c434cd Parshuram Thombare 2021-03-19 403
e222d14a2c434cd Parshuram Thombare 2021-03-19 404 static int _cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type)
e222d14a2c434cd Parshuram Thombare 2021-03-19 405 {
e222d14a2c434cd Parshuram Thombare 2021-03-19 406 int ret, tries = 3;
e222d14a2c434cd Parshuram Thombare 2021-03-19 407 u32 i;
e222d14a2c434cd Parshuram Thombare 2021-03-19 408
e222d14a2c434cd Parshuram Thombare 2021-03-19 409 for (i = 0; i < tries; i++) {
e222d14a2c434cd Parshuram Thombare 2021-03-19 410 if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0 ||
e222d14a2c434cd Parshuram Thombare 2021-03-19 411 content_type == DRM_MODE_HDCP_CONTENT_TYPE1) {
e222d14a2c434cd Parshuram Thombare 2021-03-19 412 ret = cdns_mhdp_hdcp_auth(mhdp, HDCP_TX_2);
e222d14a2c434cd Parshuram Thombare 2021-03-19 413 if (!ret)
e222d14a2c434cd Parshuram Thombare 2021-03-19 414 return 0;
e222d14a2c434cd Parshuram Thombare 2021-03-19 415 _cdns_mhdp_hdcp_disable(mhdp);
e222d14a2c434cd Parshuram Thombare 2021-03-19 416 }
e222d14a2c434cd Parshuram Thombare 2021-03-19 417
e222d14a2c434cd Parshuram Thombare 2021-03-19 418 if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) {
e222d14a2c434cd Parshuram Thombare 2021-03-19 419 ret = cdns_mhdp_hdcp_auth(mhdp, HDCP_TX_1);
e222d14a2c434cd Parshuram Thombare 2021-03-19 420 if (!ret)
e222d14a2c434cd Parshuram Thombare 2021-03-19 421 return 0;
e222d14a2c434cd Parshuram Thombare 2021-03-19 422 _cdns_mhdp_hdcp_disable(mhdp);
e222d14a2c434cd Parshuram Thombare 2021-03-19 423 }
e222d14a2c434cd Parshuram Thombare 2021-03-19 424 }
e222d14a2c434cd Parshuram Thombare 2021-03-19 425
e222d14a2c434cd Parshuram Thombare 2021-03-19 @426 dev_err(mhdp->dev, "HDCP authentication failed (%d tries/%d)\n",
e222d14a2c434cd Parshuram Thombare 2021-03-19 427 tries, ret);
e222d14a2c434cd Parshuram Thombare 2021-03-19 428
e222d14a2c434cd Parshuram Thombare 2021-03-19 429 return ret;
e222d14a2c434cd Parshuram Thombare 2021-03-19 430 }
e222d14a2c434cd Parshuram Thombare 2021-03-19 431
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2021-03-20 7:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-20 7:34 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-03-19 9:37 [PATCH v5 0/2] enable HDCP in Cadence MHDP bridge driver Parshuram Thombare
2021-03-19 9:38 ` [PATCH v5 2/2] drm: bridge: cdns-mhdp8546: Enable HDCP Parshuram Thombare
2021-03-19 9:38 ` Parshuram Thombare
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