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Kernel/SysFS: Prevent allocation for component name during construction

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Instead, allocate before constructing the object and pass NonnullOwnPtr
of KString to the object if needed. Some classes can determine their
names as they have a known attribute to look for or have a static name.
This commit is contained in:
Liav A 2021-12-12 16:33:08 +02:00 • committed by Andreas Kling
parent 4daf07e69f
commit 478f543899
17 changed files with 116 additions and 65 deletions
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5
Kernel/Firmware/BIOS.h
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@ -66,11 +66,12 @@ public:
protected:
virtual ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const = 0;
explicit BIOSSysFSComponent(StringView name);
BIOSSysFSComponent();
};
class DMIEntryPointExposedBlob : public BIOSSysFSComponent {
public:
virtual StringView name() const override { return "smbios_entry_point"sv; }
static NonnullRefPtr<DMIEntryPointExposedBlob> create(PhysicalAddress dmi_entry_point, size_t blob_size);
private:
@ -82,6 +83,7 @@ private:
class SMBIOSExposedTable : public BIOSSysFSComponent {
public:
virtual StringView name() const override { return "DMI"sv; }
static NonnullRefPtr<SMBIOSExposedTable> create(PhysicalAddress, size_t blob_size);
private:
@ -94,6 +96,7 @@ private:
class BIOSSysFSDirectory : public SysFSDirectory {
public:
virtual StringView name() const override { return "bios"sv; }
static ErrorOr<NonnullRefPtr<BIOSSysFSDirectory>> try_create(FirmwareSysFSDirectory&);
void create_components();