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phy: mediatek: xsphy: reduce main allocation

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Instead of kzalloc and kcalloc, we can use a flex array to reduce to a
single allocation.

Also added __counted_by() for extra possible analysis.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/20260304043420.14151-1-rosenp@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Rosen Penev
2026-03-03 20:34:20 -08:00
committed by Vinod Koul
parent deb281cec3
commit fd6cd05cea
1 changed files with 6 additions and 9 deletions
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15
drivers/phy/mediatek/phy-mtk-xsphy.c
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@@ -112,10 +112,10 @@ struct xsphy_instance {
struct mtk_xsphy {
struct device *dev;
void __iomem *glb_base; /* only shared u3 sif */
struct xsphy_instance **phys;
int nphys;
int src_ref_clk; /* MHZ, reference clock for slew rate calibrate */
int src_coef; /* coefficient for slew rate calibrate */
int nphys;
struct xsphy_instance *phys[] __counted_by(nphys);
};
static void u2_phy_slew_rate_calibrate(struct mtk_xsphy *xsphy,
@@ -515,18 +515,15 @@ static int mtk_xsphy_probe(struct platform_device *pdev)
struct resource *glb_res;
struct mtk_xsphy *xsphy;
struct resource res;
size_t nphys;
int port;
xsphy = devm_kzalloc(dev, sizeof(*xsphy), GFP_KERNEL);
nphys = of_get_child_count(np);
xsphy = devm_kzalloc(dev, struct_size(xsphy, phys, nphys), GFP_KERNEL);
if (!xsphy)
return -ENOMEM;
xsphy->nphys = of_get_child_count(np);
xsphy->phys = devm_kcalloc(dev, xsphy->nphys,
sizeof(*xsphy->phys), GFP_KERNEL);
if (!xsphy->phys)
return -ENOMEM;
xsphy->nphys = nphys;
xsphy->dev = dev;
platform_set_drvdata(pdev, xsphy);