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Subject[BUG] get_maintainers: Inconsistent behavior on multiple runs
Hi Joe,

Recently I was Cc'd for some of the patches from Manu, as
get_maintainers incorrectly mentioned me.

Apart from the fact that I never contributed to the mentioned
file (drivers/phy/qualcomm/phy-qcom-qmp.c), the behavior (output)
of get_maintainers changes on multiple runs. I tried following tests on
pm/linux-next branch today (should be same on any of the latest -rc
releases). There was no difference in the environment between the
two runs.

$ scripts/get_maintainer.pl drivers/phy/qualcomm/phy-qcom-qmp.c
Kishon Vijay Abraham I <kishon@ti.com> (supporter:GENERIC PHY
FRAMEWORK,commit_signer:7/7=100%)
Vivek Gautam <vivek.gautam@codeaurora.org>
(commit_signer:5/7=71%,authored:3/7=43%)
Varadarajan Narayanan <varada@codeaurora.org>
(commit_signer:2/7=29%,authored:2/7=29%)
Fengguang Wu <fengguang.wu@intel.com> (commit_signer:1/7=14%,authored:1/7=14%)
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> (commit_signer:1/7=14%)
Wei Yongjun <weiyongjun1@huawei.com> (authored:1/7=14%)
linux-kernel@vger.kernel.org (open list:GENERIC PHY FRAMEWORK)

$ scripts/get_maintainer.pl drivers/phy/qualcomm/phy-qcom-qmp.c
Kishon Vijay Abraham I <kishon@ti.com> (supporter:GENERIC PHY
FRAMEWORK,commit_signer:7/7=100%)
Vivek Gautam <vivek.gautam@codeaurora.org>
(commit_signer:5/7=71%,authored:3/7=43%)
Varadarajan Narayanan <varada@codeaurora.org>
(commit_signer:2/7=29%,authored:2/7=29%)
Krzysztof Kozlowski <krzk@kernel.org> (commit_signer:1/7=14%)
Viresh Kumar <viresh.kumar@linaro.org> (commit_signer:1/7=14%)
Wei Yongjun <weiyongjun1@huawei.com> (authored:1/7=14%)
Fengguang Wu <fengguang.wu@intel.com> (authored:1/7=14%)
linux-kernel@vger.kernel.org (open list:GENERIC PHY FRAMEWORK)

The second one incorrectly adds me to the list. Also the order of entries
is different, not sure if it should be.

The same inconsistency is seen while running on the real patch (attached).

$ scripts/get_maintainer.pl ~/Downloads/original_msg.txt
Kishon Vijay Abraham I <kishon@ti.com> (supporter:GENERIC PHY
FRAMEWORK,commit_signer:7/7=100%)
Vivek Gautam <vivek.gautam@codeaurora.org>
(commit_signer:5/7=71%,authored:3/7=43%)
Varadarajan Narayanan <varada@codeaurora.org>
(commit_signer:2/7=29%,authored:2/7=29%)
Heiko Stuebner <heiko@sntech.de> (commit_signer:1/7=14%)
Jaehoon Chung <jh80.chung@samsung.com> (commit_signer:1/7=14%)
Wei Yongjun <weiyongjun1@huawei.com> (authored:1/7=14%)
Fengguang Wu <fengguang.wu@intel.com> (authored:1/7=14%)
linux-kernel@vger.kernel.org (open list:GENERIC PHY FRAMEWORK)

$ scripts/get_maintainer.pl ~/Downloads/original_msg.txt
Kishon Vijay Abraham I <kishon@ti.com> (supporter:GENERIC PHY
FRAMEWORK,commit_signer:7/7=100%)
Vivek Gautam <vivek.gautam@codeaurora.org>
(commit_signer:5/7=71%,authored:3/7=43%)
Varadarajan Narayanan <varada@codeaurora.org>
(commit_signer:2/7=29%,authored:2/7=29%)
Viresh Kumar <viresh.kumar@linaro.org> (commit_signer:1/7=14%)
Fengguang Wu <fengguang.wu@intel.com> (commit_signer:1/7=14%,authored:1/7=14%)
Wei Yongjun <weiyongjun1@huawei.com> (authored:1/7=14%)
linux-kernel@vger.kernel.org (open list:GENERIC PHY FRAMEWORK)

I have no clue on why this happened and so including you in the chain :)

--
viresh
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From: Manu Gautam <mgautam@codeaurora.org>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Felipe Balbi <balbi@kernel.org>, linux-arm-msm@vger.kernel.org,
linux-usb@vger.kernel.org,
Vivek Gautam <vivek.gautam@codeaurora.org>,
Manu Gautam <mgautam@codeaurora.org>,
Varadarajan Narayanan <varada@codeaurora.org>,
Fengguang Wu <fengguang.wu@intel.com>,
Wei Yongjun <weiyongjun1@huawei.com>,
linux-kernel@vger.kernel.org (open list:GENERIC PHY FRAMEWORK)
Subject: [PATCH v2 02/17] phy: qcom-qmp: Adapt to clk_bulk_* APIs
Date: Wed, 27 Sep 2017 14:28:58 +0530
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From: Vivek Gautam <vivek.gautam@codeaurora.org>

Move from using array of clocks to clk_bulk_* APIs that
are available now.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
---
drivers/phy/qualcomm/phy-qcom-qmp.c | 50 ++++++++++++-------------------------
1 file changed, 16 insertions(+), 34 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 76acaec..90794dd 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -555,7 +555,7 @@ struct qcom_qmp {
struct device *dev;
void __iomem *serdes;

- struct clk **clks;
+ struct clk_bulk_data *clks;
struct reset_control **resets;
struct regulator_bulk_data *vregs;

@@ -848,22 +848,19 @@ static int qcom_qmp_phy_init(struct phy *phy)
void __iomem *pcs = qphy->pcs;
void __iomem *status;
unsigned int mask, val;
- int ret, i;
+ int ret;

dev_vdbg(qmp->dev, "Initializing QMP phy\n");

- for (i = 0; i < qmp->cfg->num_clks; i++) {
- ret = clk_prepare_enable(qmp->clks[i]);
- if (ret) {
- dev_err(qmp->dev, "failed to enable %s clk, err=%d\n",
- qmp->cfg->clk_list[i], ret);
- goto err_clk;
- }
+ ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks);
+ if (ret) {
+ dev_err(qmp->dev, "failed to enable clks, err=%d\n", ret);
+ return ret;
}

ret = qcom_qmp_phy_com_init(qmp);
if (ret)
- goto err_clk;
+ goto err_com_init;

if (cfg->has_lane_rst) {
ret = reset_control_deassert(qphy->lane_rst);
@@ -918,9 +915,8 @@ static int qcom_qmp_phy_init(struct phy *phy)
reset_control_assert(qphy->lane_rst);
err_lane_rst:
qcom_qmp_phy_com_exit(qmp);
-err_clk:
- while (--i >= 0)
- clk_disable_unprepare(qmp->clks[i]);
+err_com_init:
+ clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);

return ret;
}
@@ -930,7 +926,6 @@ static int qcom_qmp_phy_exit(struct phy *phy)
struct qmp_phy *qphy = phy_get_drvdata(phy);
struct qcom_qmp *qmp = qphy->qmp;
const struct qmp_phy_cfg *cfg = qmp->cfg;
- int i = cfg->num_clks;

clk_disable_unprepare(qphy->pipe_clk);

@@ -948,8 +943,7 @@ static int qcom_qmp_phy_exit(struct phy *phy)

qcom_qmp_phy_com_exit(qmp);

- while (--i >= 0)
- clk_disable_unprepare(qmp->clks[i]);
+ clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);

return 0;
}
@@ -998,29 +992,17 @@ static int qcom_qmp_phy_reset_init(struct device *dev)
static int qcom_qmp_phy_clk_init(struct device *dev)
{
struct qcom_qmp *qmp = dev_get_drvdata(dev);
- int ret, i;
+ int num = qmp->cfg->num_clks;
+ int i;

- qmp->clks = devm_kcalloc(dev, qmp->cfg->num_clks,
- sizeof(*qmp->clks), GFP_KERNEL);
+ qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL);
if (!qmp->clks)
return -ENOMEM;

- for (i = 0; i < qmp->cfg->num_clks; i++) {
- struct clk *_clk;
- const char *name = qmp->cfg->clk_list[i];
-
- _clk = devm_clk_get(dev, name);
- if (IS_ERR(_clk)) {
- ret = PTR_ERR(_clk);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "failed to get %s clk, %d\n",
- name, ret);
- return ret;
- }
- qmp->clks[i] = _clk;
- }
+ for (i = 0; i < num; i++)
+ qmp->clks->id = qmp->cfg->clk_list[i];

- return 0;
+ return devm_clk_bulk_get(dev, num, qmp->clks);
}

/*
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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