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Fix std.uefi.protocol.DevicePath.next() and add utility function isEnd() (#30887)

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Fix for https://codeberg.org/ziglang/zig/issues/30884 and https://codeberg.org/ziglang/zig/issues/30885

Co-authored-by: jsentity <jsentity@noreply.codeberg.org>
Co-committed-by: jsentity <jsentity@noreply.codeberg.org>
This commit is contained in:
jsentity
2026-01-26 11:41:22 +01:00
committed by linus
parent f186809caf
commit b4c86c850d
1 changed files with 3 additions and 5 deletions
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lib/std/os/uefi/protocol/device_path.zig
+3 -5
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@@ -26,12 +26,10 @@ pub const DevicePath = extern struct {
/// Returns the next DevicePath node in the sequence, if any.
pub fn next(self: *const DevicePath) ?*const DevicePath {
const subtype: uefi.DevicePath.End.Subtype = @enumFromInt(self.subtype);
if (self.type == .end and subtype == .end_entire) return null;
const bytes: [*]const u8 = @ptrCast(self);
const next_node: *const DevicePath = @ptrCast(bytes + self.length);
if (next_node.type == .end and @as(uefi.DevicePath.End.Subtype, @enumFromInt(next_node.subtype)) == .end_entire)
return null;
return next_node;
return @ptrCast(bytes + self.length);
}
/// Calculates the total length of the device path structure in bytes, including the end of device path node.