From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: mathieu.poirier@linaro.org, suzuki.poulose@arm.com,
mike.leach@linaro.org, leo.yan@linaro.org,
alexander.shishkin@linux.intel.com, mcoquelin.stm32@gmail.com,
alexandre.torgue@foss.st.com
Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] coresight: Use devm_bitmap_zalloc when applicable
Date: Sat, 23 Oct 2021 21:24:22 +0200 [thread overview]
Message-ID: <e5fe23370794e2f5442e11e7f8455ddb06e4b10a.1635016943.git.christophe.jaillet@wanadoo.fr> (raw)
'drvdata->chs.guaranteed' is a bitmap. So use 'devm_bitmap_kzalloc()' to
simplify code, improve the semantic and avoid some open-coded arithmetic
in allocator arguments.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/hwtracing/coresight/coresight-stm.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 58062a5a8238..db9eada24275 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -862,7 +862,6 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
struct stm_drvdata *drvdata;
struct resource *res = &adev->res;
struct resource ch_res;
- size_t bitmap_size;
struct coresight_desc desc = { 0 };
desc.name = coresight_alloc_device_name(&stm_devs, dev);
@@ -904,9 +903,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
else
drvdata->numsp = stm_num_stimulus_port(drvdata);
- bitmap_size = BITS_TO_LONGS(drvdata->numsp) * sizeof(long);
-
- guaranteed = devm_kzalloc(dev, bitmap_size, GFP_KERNEL);
+ guaranteed = devm_bitmap_zalloc(dev, drvdata->numsp, GFP_KERNEL);
if (!guaranteed)
return -ENOMEM;
drvdata->chs.guaranteed = guaranteed;
--
2.30.2
next reply other threads:[~2021-10-23 19:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-23 19:24 Christophe JAILLET [this message]
2021-10-23 19:36 ` [PATCH] coresight: Use devm_bitmap_zalloc when applicable Joe Perches
2021-10-23 20:09 ` Christophe JAILLET
2021-10-28 16:44 ` Mathieu Poirier
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